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Molule 1
INORGANIC CHEMISTRY
What are the following salts causing the permanent hardness?
A. nitrate of Ca and Mg
B. *sulfate and chloride of Ca and Mg
C. only chloride of Ca and Mg
D. only sulfate of Ca and Mg
E. hydrocarbonate of Ca and Mg
Calcium hydrogenphosphate is:
A. *CaHPO4
B. Ca3P2
C. (CaOH)3PO4
D. Ca3(PO4)2
E. Ca(H2PO4)2
What is the following salt causing the temporal hardness?
A. Ca3(PO4)2
B. MgCl2
C. CaСl2
D. NaCl
E. *Mg(HCO3)2
What is the name of hardness that is caused by a presence of Ca and Mg hydrocarbonate:
A. permanent or sulfate hardness
B. permanent or noncarbonate hardness
C. permanent or carbonate hardness
D. *temporal or carbonate hardness
E. temporal or noncarbonate hardness
How can you soften water by adding the following reagent?
A. Na2CO3, NaCl
B. MgSO4, H2SO4
C. Na3PO4, CaCl2
D. CaCO3, Ca(OH)2
E. *Na2CO3, NaOH
The atom of Oxygen in molecular of water has the following hybridizations:
A. d2sp3
B. sp3d2
C. *sp3
D. sp2
E. sp
The maximal density of water you can observe at temperature:
A. *4 0С
B. -2 0С
C. 25 0С
D. 100 0С
E. 0 0С
Which halide of the alkaline earth metal has the covalent bond and readily soluble in water?
A. RaCl2
B. MgCl2
C. BaCl2
D. *BeCl2
E. CaCl2
What are the products according to the carbonates of the 2-nd group elements on heating?
A. carbon dioxide and metal hydroxide
B. carbon dioxide and metal hydrocarbonate
C. metal oxide and water
D. carbon oxide and metal oxide
E. *carbon dioxide and metal oxide
10. Which element in the 2-nd group is radioactive?
A. *Ra
B. Mg
C. Ba
D. Be
E. Ca
11. Which elements of alkaline earth metals do not give characteristic flame colouration?
A. Mg, Ba
B. *Be, Mg
C. Ba, Ca
D. Ca, Sr
E. Ba, Be
12. Arrange the following in the order of increasing basic character:
A. BaOH, CaO, MgO, BeO
B. CaOH, BaO, SrO, BeO
C. CaO, BaO, MgO, BeO
D. * BeO, MgO, CaO, BaO
E. MgO, CaO, BeO, BaO
13. Arrange the following in the order of increasing solubility in water:
A. Ba(OH)2, Ca(OH)2, Mg(OH)2
B. Ca(OH)2 Ba(OH)2, Sr(OH)2
C. Ca(OH)2, Ba(OH)2, Mg(OH)2
D. Mg(OH)2, Sr(OH)2,Ca(OH)2, Ba(OH)2
E. *Mg(OH)2, Ca(OH)2, Sr(OH)2, Ba(OH)2
14. Arrange the following in the order of increasing ionic character:
A. BaCl2, CaCl2, MgCl2, BeCl2
B. CaCl2, BaCl2, BeCl2, MgCl2
C. BeCl2, CaCl2, BaCl2, MgCl2
D. MgCl2, BeCl2,CaCl2, BaCl2
E. *BeCl2, MgCl2, CaCl2, BaCl2
15. From the alkaline earth metals the maximum reduction potential has:
A. Mg
B. *Be
C. Ca
D. Sr
E. Ba
16. From the alkaline earth metals the lest reactivity and the highest density has:
A. Mg
B. *Be
C. Ca
D. Sr
E. Ba
17. Amphoteric properties have such compound as:
A. K, K2O, KOH
B. *Be, BeO, Be(OH)2
C. Ra, RaO, Ra(OH)2
D. Ca, CaO, Ca(OH)2
E. Ba, BaO, Ba(OH)2
18. Weak base is:
A. KOH
B. NaOH
C. * Be(OH)2
D. Ca(OH)2
E. Ba(OH)2
19. Weak electrolyte is:
A. KOH
B. NaOH
C. Ba(OH)2
D. Ca(OH)2
E. *Be(OH)2
20. Amphoteric properties from the ІІ А group has the fallowing element:
A. All elements of ІІ А of group
B. Calcium
C. Magnesium
D. Barium
E. *Beryllium
21. Qualitative reaction on Ba2+ions is with:
A. AgCl
B. NaNO2
C. NaNO3
D. *Na2SO4
E. NaCl
22. Qualitative reaction on calcium chloride is with:
A. КОН
B. *H2C2O4
C. NaOH
D. HCl
E. H2O
23. Magnesium on air can form the fallowing products:
A. Mg3N2, МgO, Mg2C
B. Mg3N2, Mg(OH)2
C. *Mg3N2, МgO
D. МgO, Mg(OH)2
E. МgO, Mg(NO3)2
24. Reaction of thermal decomposition of the calcium nitrate is:
A. Ca(NO3)2 → Ca + NO2 + O2
B. Ca(NO3)2 → Ca(NO2)2 + NO2 +O2
C. Ca(NO3)2 → CaO + NO2 + NO
D. *Ca(NO3)2 → Ca(NO2)2 + O2
E. Ca(NO3)2 → CaO + NO2 + O2
25. What are the products according to the electrolysis reaction of calcium chloride water
solution:
A. CaCl2 + 2H2O = Ca + Cl2 + Ca(OH)2
B. CaCl2 + H2O = Ca(OH)Cl + HCl
C. CaCl2 = Ca + Cl2
D. *CaCl2 + 2H2O = Ca(OH)2 + H2 + Cl2
E. CaCl2 + 2H2O = Ca(OH)2 + 2HCl
26. Choose an electronic configuration of Ca+2 ion if it has a sequence number 20 and it present
in II A group of IV period:
A. 1s22s22p73s23p64s1
B. 1s22s12p63s2
C. 1s22s22p63s13p6
D. 1s22s22p63s23p64s2
E. *1s22s22p63s23p6
27. What is the compound that can react with Calcium but can’t react with CaO and Ca(OH)2
A. H2SO4
B. NaOH
C. HCl
D. SO3
E. *H2O
28. What compound influence on permanent hardness:
A. Na3РО4
B. Ca(OH)2
C. *CaSO4
D. Ca(HCO3)2
E. CaCO3
29. What compound influence on temporal hardness:
A. CaCl2
B. Ca(OH)2
C. CaSO4
D. *Ca(HCO3)2
E. CaCO3
30. Total hardness of water is:
A. Amount of potassium carbonate
B. Amount of calcium and magnesium bicarbonate
C. *Amount of calcium and magnesium hydrocarbonates, sulfates and chlorides and other
salts
D. Amount of calcium and magnesium sulfates and chlorides
E. Amount of acids
31. Permanent hardness of water is:
A. Amount of calcium and magnesium hydrocarbonates
B. Amount of calcium and magnesium bicarbonate
C. Amount of calcium and magnesium bicarbonate, sulfates and chlorides and other salt
D. *Amount of calcium and magnesium sulfates and chlorides
E. Amount of acids
32. Temporal hardness of water is:
A. Amount of potassium carbonate
B. Amount of calcium and magnesium bicarbonate
C. Amount of calcium and magnesium bicarbonate, sulfates and chlorides and other salt
D. *Amount of calcium and magnesium hydrocarbonates
E. Amount of acids
33. Qualitative reaction on barium cation is reaction with solution of:
A. Sodium nitrate
B. Copper chloride
C. *Sodium sulfate
D. Silver nitrate
E. Sodium chloride
34. What is “hard” water?
A. *D2O
B. PH3
C. NH3
D. H2O with Fr
E. H2O with Pb
35. Chose the products according to the following reaction KNO3 →t
A. K3N + NO2
B. K3N + O2
C. KNO2 + O2
D. *K2O + NO2 + O2
E. KO2 + NO2
36. Where can we store alkali metals?
A. In alcohol
B. *In kerosene
C. In oil
D. In air
E. In water
37. Which element shows diagonal relationship?
A. Rb
B. Cs
C. K
D. Na
E. *Li
38. NaOH can react with:
A. NO, MnO, Al2O3
B. CO2, MgO, Al2O3
C. CO2, CaO, H2SO4
D. *CO2, Cl2, HCl
E. CO2, N2, Cl2
39. Chose the products according to the following reaction LiNO3 →t
A. Li3N + NO2
B. Li3N + O2
C. LiNO2 + O2
D. Li2O + NO2
E. *Li2O + NO2 + O2
40. Which is the strongest base?
A. *CsOH
B. RbOH
C. KOH
D. NaOH
E. LiOH
41. Which element has the largest negative values of its reduction potential?
A. Rb
B. Cs
C. K
D. Na
E. *Li
42. The lowest degree of hydration among the alkali metals has:
A. Rb
B. *Cs
C. K
D. Na
E. Li
43. The largest amount of hydration energy among the alkali metals has:
A. Rb
B. Cs
C. K
D. Na
E. *Li
44. The strongest reducing character among the alkali metals has:
A. Rb
B. Cs
C. K
D. Na
E. *Li
45. The lowest size of ion among the alkali metals has:
A. Rb
B. Cs
C. K
D. Na
E. *Li
46. The highest melting point among the alkali metals has:
A. Rb
B. Cs
C. K
D. Na
E. *Li
47. The lowest ionization energy among the first group elements has:
A. Rb
B. *Cs
C. K
D. Na
E. Li
48. The most electropositive character among the first group elements has:
A. Rb
B. *Cs
C. K
D. Na
E. Li
49. What are products according to the reaction: NaH + H2O >?
A. Na2O+О2
B. Na+H2O2
C. NaOH+O2
D. *NaOH+H2
E. Na2O+H2
50. What is characteristic flame colouration of Li?
A. Bluish
B. Green
C. *Crimson red
D. Pale violet
E. Yellow
51. What is characteristic flame colouration of Na?
A. Bluish
B. Green
C. Crimson red
D. Pale violet
E. *Yellow
52. What is characteristic flame colouration of K?
A. Bluish
B. Green
C. Crimson red
D. *Pale violet
E. Yellow
53. Potassium hydroxide can react with:
A. O2, CаO
B. *CO2, CuSO4
C. Ca(OH)2, H3PO4
D. CаO, MgSO4
E. O2, HNO3
54. Potassium hydroxide can react with:
A. CaO
B. NaCl
C. Ca(OH)2
D. *NO2
E. Ce
55. Choose an electronic configuration of K+ ion if it has a sequence number 19 and it present
in I A group of IV period:
A. 1s2 2s2 2p7 3s2 3p6 4s0
B. 1s1 2s3 2p6 3s2 3p6 4s0
C. 1s2 2s2 2p6 3s2 3p6 4s2
D. 1s2 2s2 2p6 3s2 3p6 4s1
E. *1s2 2s2 2p6 3s2 3p6 4s0
56. The isotope 2311Nа has:
A. 12 electrons, 11 protons, 11 neutrons
B. *11 electrons, 11 protons, 12 neutrons
C. 12 electrons, 11 protons, 12 neutrons
D. 11 electrons, 11 protons, 11 neutrons
E. 12 electrons, 12 protons, 11 neutrons
57. Potassium with water can form:
A. KOH + О2
B. K2O + H2O
C. *KOH + H2
D. K2O + H2O
E. KOH + H2O
58. Choose an electronic configuration of sodium:
A. 1s22s12p73s1
B. 1s22s12p73s1
C. *1s22s22p63s1
D. 1s22s12p73s2
E. 1s12s32p63s1
59. Potassium with oxygen can form potassium superoxide formula which is:
A. KO3
B. K2O3
C. K2O
D. *KO2
E. KO
60. Sodium with oxygen appears sodium peroxide formula which is:
A. Na2O3
B. *Na2O2
C. NaO2
D. NaO
E. Na2O
61. Sodium sulfide can form when sodium reacts with:
A. Sulfuric and sulfitic acid
B. Sulfuric or nitrate acid
C. Dilute or concentrated sulfuric acid
D. Sulfitic acid, sulphur
E. *Sulphur, sulfide acid
62. Sodium can react with the followings simple compounds:
A. Sulfuric acid, methane
B. Sulfuric acid, copper
C. Methane, sulfuric acid
D. *Oxygen, hydrogen
E. Potassium, oxygen
63. The most active metal is:
A. Calcium
B. Lithium
C. *Caesium
D. Magnesium
E. Sodium
64. Oxygen is formed when such compounds react:
A. NaOH and CО
B. Na2O and CО2
C. Na2О2 and CO
D. *Na2О2 and CО2
E. NaOH and CО2
65. Potassium with Oxygen forms:
A. ozonide
B. *superoxide
C. dioxide
D. peroxide
E. monoxide
66. KO2 with water forms:
A. Sodium peroxide
B. Oxygen
C. *Base and oxygen
D. Hydrogen peroxide
E. Hydrogen and base
67. Alkaline metals in compounds have oxidation numbers:
A. -1, 0, +1
B. +1 or +2
C. * +1
D. +3
E. -2
68. The most stable compound of hydrogen with VA group elements is:
A. BiH3
B. SbH3
C. AsH3
D. PH3
E. *NH3
69. What reaction can exist at room temperature?
A. Сr2O3 + H2 
B. Mg + H2O 
C. Au + HCl 
D. Cu + H2O 
E. *Na + H2O
70. What type of bond is in molecule of H2?
A. Metallic
B. *Non-polar covalent
C. Hydrogen
D. Polar covalent
E. Ionic
71. Hydrogen in compounds has oxidation numbers:
A. +1, +2
B. 0, -1
C. 0, +1, +2
D. +1, 0
E. *-1, +1
72. Hydrogen can form when react:
A. NH3 + HCl
B. Zn + H2SO4(conc.)
C. Al + HNO3
D. Cu + H2SO4
E. *Na + H2O
73. Oxide can form when oxygen reacts with:
A. Na
B. K
C. *Li
D. Fr
E. Cs
74. What chemical reactions can use for synthesis of hydrogen in the laboratory?
A. Mg+HNO3
B. Cu+H2SO4
C. *Zn+NaOH
D. Fe+KOH
E. Zn+HNO3
75. What reaction can use for synthesis of hydrogen in the laboratory?
A. CH4 + 2H2O  CO2 + 4H2
B. Fe + H2O  Fe3O4 + H2
C. CH4  C + 2H2
D. C + H2O  CO + H2
E. *Zn + 2HCl  ZnCl2 + H2
76. Sodium chloride solution is widely used in medicine. What is type of chemical bond in NaCl
compound?
A. Metallic
B. Non-polar covalent
C. Hydrogen
D. Polar covalent
E. *Ionic
77. Some alkaline metal salts are used in psychiatry. It can form with oxygen oxide, which
formula is E2O. What is metal?
A. *Li
B. Cs
C. Rb
D. K
E. Na
78. What elements are s-elements?
A. P, S, Cr
B. *K, Ca, Ba
C. Be, Mg, S
D. S, P, Cl
E. Mn, Br, Mo
79. What products can form during electrolysis sodium chloride water solution?
A. H2, HCl, NaOH
B. *H2, Cl2, NaOH
C. Na, H2, HCl
D. Na, Cl2, H2O
E. Na, Cl2, NaOH
80. Francium is
A. The greatest semiconductors
B. The greatest insulators
Widespread in the globe
*Radio-active elements
Hard
81. Peroxide can form when oxygen reacts with:
A. All alkaline metals
B. Lithium
C. Copper
D. Potassium
E. *Sodium
C.
D.
E.
1.
2.
3.
4.
5.
6.
7.
8.
PROPERTIES OF THE P-ELEMENTS
Which oxoacid of chalogen has the strongest oxidizing property ?
A. Hydrogen chloride
B. Perchloric
C. Chloric
D. Chlorous chloric
E. *Hypochlorous
Which oxoacid of chalogen contain clorine with oxidation state +5 ?
A. Hydrogen chloride
B. Perchloric
C. *Chloric
D. Chlorous chloric
E. Hypochlorous
Which oxoacid of chalogen contain clorine with oxidation state +7 ?
A. Hydrogen chloride
B. *Perchloric
C. Chloric
D. Chlorous chloric
E. Hypochlorous
Which oxoacid of chalogen contain clorine with oxidation state +1 ?
A. Hydrogen chloride
B. Perchloric
C. Chloric
D. Chlorous chloric
E. *Hypochlorous
Which oxoacid of chalogen contain clorine with oxidation state -1 ?
A. *Hydrogen chloride
B. Perchloric
C. Chloric
D. Chlorous chloric
E. Hypochlorous
Which oxoacid of chalogen contain clorine with oxidation state +3 ?
A.
Hydrogen chloride
B. Perchloric
C. Chloric
D. *Chlorous chloric
E. Hypochlorous
Which oxoacid of chalogen contain clorine with oxidation state +2 ?
A. *No one
B. Perchloric
C. Chloric
D. Chlorous chloric
E.
Hypochlorous
What is colour of chloroform layer when chlorine evolving during reaction ?
Violet
Red
Black
*Colourless
Yellow
9. What is colour of chloroform layer when bromine evolving during reaction ?
A. Violet
B. Red
C. Black
D. Colourless
E. *Yellow
10. What is colour of chloroform layer when iodine evolving during reaction ?
A. *Violet
B. Red
C. Black
D. Colourless
E. Yellow
11. Choose the pseudo halides :
A. *CNB. ICl2+
C. I3D. ICl4E. ICl212. Which type of the chemical bond interhalogens have ?
A. metallic
B. coordination
C. hydrogen
D. ionic
E. *covalent
13. What is interhalogen compound ?
A. The compounds containing halogen atom and nitrogen
B. The compounds containing halogen atom and sulpher
C. The compounds containing halogen atom and hydrogen
D. The compounds containing halogen atom and oxygen
E. *The compounds containing two or more halogen atoms
14. Choose the formula of Chloric acid
A. HClO4
B. HClO2
C. *HClO3
D. HClO
E. HCl
15. Which acid has the highest reducing character ?
A. *HI
B. H2SO4
C. HBr
D. HCl
E. HF
16. Which halogen has the tedency forming the hydrogen bond ?
A. At
B. I
C. Br
D. Cl
E. *F
17. The lowest oxidation of halogen is :
A.
B.
C.
D.
E.
+2
+1
-3
-2
*-1
18. The highest oxidation state of chlorine is :
A. +8
B. *+7
C. +2
D. +1
E. -1
19. Which is colour bromine has ?
A. White
B. Dark violet
C. *Reddish brown
D. Greenish yellow
E. Light yellow
20. Which is colour iodine has ?
A. White
B. *Dark violet
C. Reddish brown
D. Greenish yellow
E. Light yellow
21. Which halogen has the maximum tendency to accept an additional electron ?
A. At
B. I
C. Br
D. Cl
E. *F
22. Which halogen has the highest electron affinity ?
A. At
B. I
C. Br
D. *Cl
E. F
23. How do the ionization energies change going down the VII-A group ?
A. don’t change
B. first decrease than increase
C. first increase than decrease
D. increase
E. *E. decrease
24. What element is radioactive among VII-A group elements ?
A. *At
B. I
C. Br
D. Cl
E. F
25. Name the noble gas which has least boiling point
A. Ne
B. He
C. *Xe
D. Kr
E. Ar
26. Name the noble gas which is radioactive
A.
B.
C.
D.
E.
Ne
He
Xe
*Rn
Ar
27. Name the gas which is the most abundant in atmosphere
A. F2
B. Kr
C. Xe
D. Rn
E. *Ar
28. Which among the following is the most weak acid ?
A. *HIO
B. HCl
C. HIO4
D. HIO3
E. HI
29. Which among the following is the most strong acid ?
A. HClO4
B. *HIO4
C. HIO3
D. HIO2
E. HOI
30. Among hydrides predict the hydride which is the most stable
A. HI
B. HBr
C. HCl
D. *HF
E. H2S
31. Among hydrides predict the hydride having the most acidic property
A. *HI
B. HBr
C. HCl
D. HF
E. H2O
32. Among hydrides predict the hydride having the highest boiling point
A. HI
B. HBr
C. HCl
D. *HF
E. H2S
33. Among hydrides predict the hydride having the lowest boiling point
A. HI
B. HBr
C. *HCl
D. HF
E. H2O
34. Name the element of group VII-A, which has the highest melting point :
A. O
B. *I
C. Br
D. Cl
E. F
35. Give an example of oxide of chlorine having +6 oxidation state of Cl.
A.
B.
C.
D.
E.
Cl2O3
*Cl2O6
Cl2O5
Cl2O7
ClO2
36. Difluoride xenon can form when xenon react with fluorine by heating. Choose this reaction.
A. Xe + 2F2 = XeF4
B. Xe + 3F2 = XeF6
C. Xe2 + F2 = 2XeF
D. 2 Xe + 3F2 = 2XeF3
E. *Xe + F2 = XeF2
37. Choose the electronic formula of Krypton:
A. 1s22s22p63s23p3
B. *1s22s22p63s23p64s23d104p6
C. 1s22s22p63s23p6
D. 1s22s22p63s23p5
E. 1s23s22p6
38. Choose the electronic formula of Helium:
A. 1s22s1
B. 1s22s2
C. *1s2
D. 1s22s22p6
E. 1s22s22p63s23p6
39. Xenon (VI) oxide is non stable white matter which is decomposed with an explosion and has
acidic property. What is formula?
A. XeO
B. Xe2O5
C. XeO4
D. *XeO3
E. Xe2O3
40. What atoms among the noble gases has the biggest atomic radius?
A. He
B. Ne
C. Ar
D. *Xe
E. Kr
41. Choose the electronic formula of Argon:
A. 1s22s22p4
B. *1s22s22p63s23p6
C. 1s22s22p5
D. 1s22s22p6
E. 1s22s22p63s23p5
42. What metal can not react with hydrochloric acid?
A. *Au
B. Al
C. Zn
D. Fe
E. Ca
43. What is acid our body contains?
A. HI
B. *HCl
C. HClO4
D. HClO
E. HBrO
A.
B.
C.
D.
E.
44. What is formed at the reaction of chlorine with water :
A. HClO + HClO4
B. *HClO + HCl
C. HClO + HClO2
D. HClO + Cl2O7
E. HClO + HClO3
45. What type of chemical bond is in the molecule of NaCl?
A. Metallic
B. Non-polar covalent arctic
C. *Ionic
D. Polar covalent
E. Hydrogen
46. Oxidizing properties of halogens increase in row:
A. I2, Сl2, Вr2, F2
B. Br2, F2, I2, Сl2
C. Вr2, I2, Сl2, F2
D. F2, Сl2, Вr2, I2
E. *I2, Вr2, Сl2, F2
47. What metal can not react with hydrochloric acid?
A. Fe
B. Al
C. Ca
D. Zn
E. *Ag
48. What metal can not react with hydrochloric acid?
A. Sn
B. Zn
C. Mg
D. Al
E. *Cu
49. The calcium chloride is applied at the different pathological states in human body as diminishes
permeability of vessels, as a styptic agent. What compound can react with CaCl2?
A. Ca
B. NaCl
C. CaNO3
D. KNO3
E. *AgNO3
50. Water as a solvent is used in pharmacy. What simple compounds can react with water at a room
temperature?
A. Gold
B. Copper
C. Silicon
D. Nitrogen
E. *Chlorine
51. What salts can be hydrolyzed?
A. KI
B. LiBr
C. KI
D. NaCl
E. *NaF
52. What compounds can be formed by the reaction of chlorine and hot concentrated solution of
KOH?
A. KCl, KClO2, H2O
B. KCl, Cl2O7, H2O
C. KCl, ClO2, H2O
D. KCl, KClO, H2O
E. *KCl, KClO3, H2O
53. Chlorine (I) oxide Сl2О is the anhydride of such acid as:
A. HClO5
B. HClO4
C. HClO2
D. HClO3
E. *HClO
54. In which reaction is chlorine oxidized?
A. ClO3-→ Cl2
B. Cl2→2ClC. ClO3-→ClOD. 2ClO-→Cl2
E. * 2Cl-→Cl2
55. What the ion has the most reduction properties?
A. Ag+
B. BrC. ClD. F–
E. *E. I56. What element as a simple matter is a liquid?
A. Hydrogen
B. Sulfur
C. Phosphorus
D. Nitrogen
E. *Bromine
57. Manganese and Chlorine have similar properties when their oxidation number is:
A. +2
B. +4
C. 0
D. +3
E. *+7
58. Chloride compounds can use as disinfectant agent. What is formula of hypochloric acid?
A. HCl
B. HClO3
C. HClO2
D. HClO4
E. *HClO
59. A chloric lime is used as disinfectant agent. What is it formula?
A. Ca(ClO3)2
B. CaCl2
C. Ca(ClO4)2
D. Ca(OCl)2
E. *CaOCl2
60. What compound can not react?
A. KCl + F2 → KF + Cl2
B. NaI + Cl2 → NaCl + I2
C. NaBr+ Cl2 → NaCl + Br2
D. KI + Br2 → KBr + I2
E. *KCl + Br2 → KBr + Cl2
61. Sodium iodide is applied in medicine as:
A. Diuretic
Anesthetic
Depressant
Plasmaexchanger
*Source to the microelement of iodine
62. Hydrogen can form when hydrochloric acid react with metal:
A. Platinum
B. Gold
C. Mercury
D. Cupper
E. *Aluminum
63. Hydrochloric acid can not react with:
A. Bases
B. *Heavy metals
C. Alkaline-earth metals
D. Alkaline metals
E. Post-transition metals
64. Chlorine can form in a reaction of:
A. HCl + Na
B. HCl + I2
C. *HCl + F2
D. HCl + Br2
E. HCl + Mg
65. Choose the correct equation of reaction:
A. I2 + 2КBr = 2KI + Br2
B. At2 + 2KCl = 2KАt + Cl2
C. I2 + 2KCl = 2KI + Cl2
D. Br2 + 2KCl = Cl2 + 2КBr
E. *Cl2 + 2KBr = 2KCl + Br2
66. Choose the correct equation of reaction:
A. 2Fe + Cl2(moisture.) → 2FeCl
B. Fe + Cl2(moisture) → FeCl2
C. 2Fe + 3Cl2(dry.) → 2FeCl3
D. Fe + Cl2(dry) >FeCl2
E. *2Fe + 3Cl2(moisture) → 2FeCl3
67. Choose the correct equation of reaction:
A. Cl2 + H2O → 2HClO
B. Cl2 + H2O →Cl2 + H2 + O2
C. Cl2 + H2O > Cl2O + H2
D. Cl2 + 2H2O > 2HClO + H2
E. *Cl2 + H2O → HClO + HCl
68. Choose the compound which can not react with chlorine:
A. Cu
B. P
C. *N2
D. K
E. Mg
69. Choose the compound which can not react with chlorine:
A. Н2
B. Cu
C. Ba
D. Al
E. *C
70. Choose the compound which can not react with chlorine:
A. К
B.
C.
D.
E.
Fe
H2
*O2
P
71. Chlorides with silver nitrate can be form ……. color precipitation.
A. Black
B. Yellow
C. Black
D. Green
E. *White
72. What compound can be form in the reaction of Fe + Cl2 →…?
A. FeCl
B. *FeCl3
C. Fe3Cl
D. Fe2Cl
E. FeCl2
73. Hydrochloric acid can be reducer in such reaction:
A. NaOH + HCl = NaCl + H2O
B. ZnO + 2HCl = ZnCl2 + H2O
C. MgO + 2HCl = MgCl2 + H2O
D. MnO + 2HCl = MnCl2 + H2O
E. *MnO2 + 4HCl = MnCl2 + Cl2 + 2H2O
74. Which compound can not interacting?
A. Na + HCl
B. *Cu + HCl
C. Ba + HCl
D. Zn + HCl
E. Fe + HCl
75. Chlorine can be prepared in an industry by such reaction as:
A. 16HCl + 2KMnO4 = 5Cl2 + 2MnCl2 + 2KCl + 8H2O
B. 2KCl + F2 = 2KF + Cl2
C. 2NaCl → 2Na + Cl2
D. *2NaCl + 2H2O → H2 + 2NaOH + Cl2
E. MnO2 + 4HCl = Cl2 + MnCl2 + 2H2O
76. Hydrochloric acid can be prepared in a laboratory by such reaction as:
A. H2 + Cl2 = 2HCl
B. 2 NaCl(solution) + H2 = 2HCl + 2Na
C. NaCl(solution) + HNO3(conc.) = HCl + NaNO3
D. H2 + FeCl2 = Fe + 2HCl
E. *NaCl(solid) + H2SO4(conc.) = HCl+ NaHSO4
77. Chlorine can be prepared in a laboratory by such reaction:
A. C2H5Cl + HCl = C2H6 + Cl2
B. 2NaCl → 2Na + Cl2
C. FeCl2 → Fe + Cl2
D. 2HCl + 2Na = 2NaH + Cl2
E. *16HCl + 2KMnO4 = 5Cl2 + 2MnCl2 + 2KCl + 8H2O
78. Chlorine can be prepared in a laboratory by such reaction as:
A. Br2 + KCl = KBr + Cl2
B. 2HCl → H2 + Cl2
C. C2H5Cl + HCl = C2H6 + Cl2
D. CH3Сl + HCl = CH4 + Cl2
E. *MnO2 + 4HCl = Cl2 + MnCl2 + 2H2O
79. What acid is used for purification of metals?
A. Sulfide
B.
C.
D.
E.
*Hydrochloric
Carbonate
Nitric
Sulfuric
80. What compound is formed when iron react with hydrochloric acid?
A. Fe(OH)Cl2
B. Fe(OH)Cl
C. FeCl3
D. FeCl
E. *FeCl2
81. Choose an electronic configuration of chloride ion (Cl+7), if chlorine is in VII A group of III
period and has number 17:
A. 1s22s22p63s23p2
B. *1s22s22p63s03p0
C. 1s22s22p63s23p4
D. 1s22s22p63s23p5
E. 1s22s22p63s2
82. Choose an electronic configuration of chloride ion (Cl+3), if chlorine is in VII A group of III
period and has number 17:
A. 1s22s22p63s23p0
B. *1s22s22p63s23p2
C. 1s22s22p63s23p4
D. 1s22s22p63s23p5
E. 1s22s22p63s23p6
83. Choose an electronic configuration of chloride ion (Cl-1), if chlorine is in VII A group of III
period and has number 17:
A. 1s22s22p73s13p6
B. 1s22s12p73s23p5
C. 1s22s22p63s13p6
D. 1s22s22p63s23p5
E. *1s22s22p63s23p6
84. To name compound С2Н4Cl2:
A. Dichloroethyne
B. Chloroethane
C. Dichloroethene
D. *Dichloroethane
E. Chlormethane
85. Choose compounds which can react with the hydrochloric acid?
A. Potassium permanganate, bromine, zinc
B. Bromine, oxygen, potassium nitrate
C. Zinc, tin nitrate, helium
D. Potassium of hydroxide, copper, calcium
E. *Manganese (IV) oxide, sodium oxide, potassium
86. The most strong acid is:
A. НСlO3
B. НСl
C. НСlO2
D. *НСlO4
E. НСlO
87. In glass is impossible to keep water solution of:
A. HI
B. *HF
C. НС1
D. H2SO4
B.
C.
D.
E.
E. HNO3
88. Qualitative reaction on chloride, bromide and iodide ions is reaction with:
A. Barium cation
B. Sodium cation
C. Ammonium cation
D. Sodium cation
E. *Silver cation
89. What compound can react with silicon (IV) oxide?
A. Nitric acid
B. Bromide acid
C. Hydrochloric acid
D. *Fluoride acid
E. Iodide acid
90. What substance can transform from the crystalline state to gaseous after heating, avoiding liquid
state?
Fluorine
Sulfur
Bromine
Iodine
*Chlorine
91. At room temperature bromine is:
A. Green color gas
B. Darkly-violet color crystals
C. *Red –brown liquid
D. Violet color vapor
E. Light-yellow liquid
92. The chlorine water is:
A. Saturated water solution chlorate acid
B. Saturated water solution of hydrochloride
C. *Saturated water solution of chlorine
D. Water solution of hydrochloric acid
E. Water solution of sodium chloride
93. The chlorine is prepared by the reaction of:
A. iodine and potassium chloride
B. the thermal decomposition of hypochlorous acid
C. the thermal decomposition of sodium chloride
D. the hydrolysis of chlorates
E. *concentrated hydrochloric acid and manganese (IV) oxide
94. Chlorine has a positive oxidation number in compounds with:
A. Phosphorus
B. Hydrogen
C. *Oxygen
D. Sulfur
E. Alkalis metals
95. What is element that has only a negative oxidation number in its compounds?
A. Cesium
B. Bromine
C. Iodine
D. *Fluorine
E. Oxygen
96. What is property thiosulphuric acid has?
A. Diprotic acid, reducing and oxidizing agent
B. Monoprotic acid, oxidizing agent
C. Monoprotic acid, reducing agent
A.
A.
B.
C.
D.
D. Diprotic acid, oxidizing agent
E. *Diprotic acid, reducing agent
97. Sulfur containing mineral is:
A. *Iron pyrite
B. Bauxite
C. Silicates
D. Silica
E. Limestone
98. How does acidic character change in the following row SO2, SeO2, TeO2, PoO2
A. Increase than decrease
B. *Decrease
C. Decrease than increase
D. Does not change
E. Increase
99. With which halogen sulfur has the maximal valency six?
A. F2 and I2
B. I2
C. Br2
D. Cl2
E. *F2
100. Which hydride of the VI-A elements has the highest reducing property?
A. H2Po
B. *H2Te
C. H2Se
D. H2S
E. H2O
101. Which hydride of the VI-A elements has the highest acidic character?
A. H2Po
B. *H2Te
C. H2Se
D. H2S
E. H2O
102. What is character of sulfur hydride?
A. Weak triprotic asid
B. Strong monoprotic acid
C. Weak monoprotic asid
D. Strong diprotic acid
E. *Weak diprotic asid
103. Physical properties of hydrides of VI-A group except water are:
A. Colourless, fresh smelling, not poisonous gases
B. Red-brown colour, bad smelling, poisonous gases
C. *Colourless, bad smelling, poisonous gases
D. Colourless, odourless gases
E. lourless, odourless liquids
104. What is structure of sulfur?
A. monoatomic structure
B. has eight atoms per molecule and has square structure
C. has two atoms per molecule and has line structure
D. has two atoms per molecule and has pucked ring structure
E. *has eight atoms per molecule and has pucked ring structure
105. What is allotropy of sulfur?
A. Amorphic and crystalline sulfur
B. White, red, black sulfur
C. Grey and yellow sulfur
D. *Rhombic, monoclinic, plastic sulfur
E. Sulfurand ozone
106. What is the oxidation state of S in the following oxyacid: Sulfuric?
A. +8
B. *+6
C. +4
D. +2
E. -2
107. What is the oxidation state of S in the following oxyacid: Sulfurous?
A. +8
B. +6
C. *+4
D. +2
E. -2
108. What is the oxidation state of S in the following oxyacid: Thiosulphuric?
A. +8
B. +6
C. +4
D. *+2
E. -2
109. What is the oxidation state of S in the following oxyacid: Peroxy disulphuric?
A. +8
B. *+6
C. +4
D. +2
E. -2
110. Sulfur has such oxidation number in compounds:
A. -2, +4, +2, +5
B. -2, +4, 0
C. *-2,+4, +6
D. +4, +6
E. +1, 0 +2, +6
111. What products are formed if 1mole of NaOH react with 1 moleH2S?
A. NaHSO3 + H2O
B. *NaHS + H2O
C. Na2S + 2H2O
D. Na2SO3 + H2O
E. Na2HS
112. Choose the row of matters which are react with SO2 and SO3:
A. O2, H2O, NaOH
B. *H2O, Na2O, KOH
C. O2, H2, Cl2
D. NaOH HNO3, Hg
E. He, Au, KOH
113. Choose the correct equations of chemical reaction:
A. 2К + 2H2SO4(conc) → К2SO4 + SO2 + 2H2O
B. Cu + H2SO4(conc) >CuSO4 + H2
C. *C + 2H2SO4(conc)→ CO2 + 2SO2 + 2H2O
D. 3Zn + 4H2SO4(del) → 3ZnSO4 + S + 4H2O
E. Co + H2SO4(conc) → CoSO4 + H2 + H2O
114. Sulfate acid can not react with such compounds:
A. HNO3, NaOH, BaCl2, СаСО3
B. *HNO3, Au, Cu, N2
C. K2O, Cu(OH)2, Ca(NO3)2
D. Na2O, Cu(OH)2, BaCl2
E. Na2CO3, Na, KOH
115. What properties have concentrated sulfuric acid?
A. Reducing and oxidizing
B. *Acid and oxidizing
C. Only oxidizing
D. Acidic and reducing
F. Only acidic
116. What compound is formed when concentrated sulfate acid react with non active metals:
A. SO3
B. H2S
C. H2
D. *SO2
E. S
117. What compound is formed when concentrated sulfate acid react with active metals (such as
sodium, potassium)?
A. SO3
B. *H2S
C. H2
D. SO2
E. S
118. Sulfuric diluted acid can react with such compounds as:
A. Fe(OH)2, Ag, Ba(NO3)2
B. HNO3, NaOH, Ba(NO3)2
C. Na2O, Cu(OH)2, Au
D. *Na2O, Cu(OH)2, BaCl2
E. Na, Cu, KOH
119. What are products formed , if 2 mole of NaOH react with 1 mole of H2SO4?
A. Na2SO3 + 2H2O
B. NaHSO3
C. *Na2SO4 + 2H2O
D. Na2SO4
E. NaHSO4 + 2H2O
120. What factor influence for the oxidation of sulfur dioxide to sulfur trioxide by reaction: 2SO2 +
O2 → 2SO3:
A. To depressed a temperature and use H3PO4 as a catalyst
B. To depressed pressure
C. To increase pressure
D. *To increase a temperature and use V2O5 as a catalyst
E. To depressed a temperature
121. What compounds can react with SO2:
A. SiO2, NaOH, H2O
B. CO2, HBr, Na2O
C. *H2O, KOH, Na2O
D. H2O, KCl, NaOH
F. H2O, CO2, HCl
122. What properties has sulfuric acid?
A. Reducing and oxidizing
B. Only oxidizing
C. *Oxidizing and acidic
D. Reducing and acidic
E. Only acidic
123. What properties have sulfide acid (H2S)?
A. Reducing and oxidizing
Only oxidizing
Oxidizing and acidic
*Reducing and acidic
Only acidic
124. By physical properties SO2 is:
A. Colorless liquid
B. *B. Colorless gas with the smell of the singed sulfur
C. C. Brown gas of unpleasant smell
D. D. Crystalline matter of yellow color
E. Liquid with an unpleasant smell
125. Choose compound which can react with sulfur:
A. Na, H2, H2O, N2
B. H2, KOH, N2
C. H2O, K, H2
D. *Na, H2, O2, KOH
E. H2O, H2CO3, O2
126. What acids are used for drying of gases?
A. H2SO3
B. H2CO3
C. *H2SO4 (concentrated)
D. HCl
E. HNO3
127. What is not formed compound, if concentrated sulfate acid reacts with metals?
A. Н2S
B. H2O
C. *H2
D. S
E. SO2
128. p-elements of VI A group is:
A. *S
B. Cu
C. H
D. Cl
E. Al
129. What metal can not react with the concentrated sulfuric acid?
A. Со
B. Mg
C. Cu
D. Zn
E. *Fe
130. Sulfur (IV) oxide is oxidized by oxygen to sulfur (VI) oxide:
A. At cooling and presence of catalyst
B. *At heating and presence of catalyst
C. At heating
D. At catalyst
E. At room temperature
131. Sulfite and sulfate acid belongs to:
A. Oxidant acids acids
B. Have not oxygen acids
C. Tribasic acids
D. *Dibasic acids
E. Monobasic acids
132. What metal can not react with the diluted sulfate acid?
A. К
B.
C.
D.
E.
B. *Ag
C. Zn
D. Pb
E. Fe
133. Qualitative reaction on H2SO4 is used such salt as:
A. FeCl3
B. CO2
C. *BaCl2
D. AgNO3
E. NaOH
134. Sulfur (VІ) oxide can not react with such compounds:
A. Na2O
B. СаО
C. *N2O5
D. КОН
E. Н2О
135. Sulfur (VІ) oxide can not react with such compound as:
A. O2
B. *К2SO4
C. NаОН
D. Н2S
E. Cl2
136. Sulfur has oxidation and reduction properties. Which compound has reduction properties with
sulfur?
A. F2
B. HNO3(concentrate)
C. *Р
D. Cl2
E. О2
137. Sodium sulfite has oxidation and reduction properties. Which compound has reduction
properties with sodium sulfite?
A. Н2О
B. K2Cr2O7
C. KMnO4
D. *Nа2S
E. Nа2SO4
138. What compounds can react to give this molecular-ionic equation: S2- + 2Н+ = Н2S:
A. Potassium sulfide and nitrate acid
B. Potassium sulfide and sulfate acid
C. Sodium sulfide and hydrochloric acid
D. *Sodium sulfide and hydrochloric acid
E. Potassium sulfide and water
139. What compounds can react to give this molecular-ionic equation: Ва2+ + SO32-=BaSО3:
A. *Barium nitrate and sodium sulfite
B. Barium chloride and sodium thiosulphate
C. Barium nitrate and potassium sulfide
D. Barium chloride and sodium sulfate
E. Barium chloride and sodium sulfide
140. What compounds can react to give this molecular-ionic equation: Cu2+ + S2- = CuS:
A. Cupper (ІІ) nitrate and sulfide acid
B. *Cupper (ІІ) nitrate and sodium sulfide
C. Cupper (ІІ) carbonate and sulfide acid
D. Cupper (ІІ) oxide and sodium sulfide
E. Cupper (ІІ) hydroxide and sulfide acid
141. What compounds can react to give this molecular-ionic equation: Pb2+ + SO42-= PbSO4-?
A. PbS and (NH4)2SO4
B. Pb(OH)2 and H2SO4
C. *Pb(NO3)2 and (NH4)2SO4
D. PbS and H2SO4
E. Na2PbO2 and NaSO4
142. The qualitative test to determine sulfate ion in reagent must contain:
A. Silver ions
B. Cupper ion
C. Iron ion
D. Potassium ions
E. *Barium ions
143. In nature sulfur is in:
A. Sylvinite
B. Rock-salt
C. *Lead sulfide
D. Apatites
E. Cryolite
144. The diluted sulfate acid has such properties as:
A. Oxidation
B. Strong bases
C. *Strong acids
D. Reduction
E. Weak acids
145. Ion of sulfide S2- has electron configuration:
A. 1s22s12p73s23p6
B. *1s22s22p63s23p6
C. 1s22s22p63s23p5
D. 1s22s22p63s23p4
E. 1s22s22p63s23p3
146. Choose the substances wich react with oxygen:
A. Ozone, chlorine
B. Phosphoric acid, Sulfuric acid
C. Potassium sulfite, sodium hydroxide
D. Zinc sulfate, sodium carbonate
E. *Sulfur dіоxide, butane
147. Which chemical compound is not formed in the interaction of the simple substance and
oxygen?
A. Anhydride
B. Amphoteric oxide
C. Peroxide
D. *Acid
E. Oxide
148. Choose the substance wich does not react with oxygen:
A. Na2SO3
B. FeS2
C. SO2
D. *Na2SO4
E. СО
149. Choose the substance wich does not react with oxygen:
A. NO
B. FeS2
C. ZnS
D. *H2SO4
E. P2O3
150. Choose the chemical compounds which react with oxygen:
A. Nitric acid, ozonide
B. Phosphoric acid, sulfurous acid
C. Potassium sulfate, sodium hydroxide
D. *Carbon momooxide, phosphorus (ІІІ) оxide
E. Zinc sulfide, sodium carbonate
151. Which elements react with oxygen and form oxides?
A. sodium, propane
B. Сarbon, iron
C. *Platinum, methane
D. Potassium, phosphorus
E. Bromine, gold
F. ch elements react with oxygen and form oxides?
152. Which elements react with oxygen and form oxides?
A. Nitrogen, Rubidium
B. Caesium, fluorine
C. Chlorine, sodium
D. *Sulfur, lithium
E. Nickel, potassium
153. Fluorine in the compound with oxygen has the oxydation state:
A. -2
B. 0 or -1
C. 0
D. *-1
E. +2 or +1
154. Which component belongs to the composition of oxoacids?
A. Oxygen with oxidation state -1
B. Oxygen with oxidation state 0
C. Ammonium
D. *Oxygen with oxidation state -2
E. Atom of metal
155. Which compound doesn’t contain oxygen?
A. Ozonide of the metals
B. Not solubility base
C. *Sulfide
D. Peroxide
E. Amphoteric oxide
156. Chemical compound of ВаО2 belongs to:
A. Super oxide
B. Complex oxide
C. acidic anhydride
D. oxide
E. *peroxide
157. What is type of bond present in oxygen molecule?
A. Coordination bond
B. *Nonpolar covalent bond
C. Triple bond
D. Polar covalent bond
E. Single bond
158. Oxygen is obtained by a termal decomposition of…
A. Sodium peroxide
B. Amphoteric oxides
C. *Potassium permanganate
D. Copper hydroxide
E. Calcium carbonate
159. Which elemen has this electronic configurations 1s22s22p4?
A. Chlorine
B. Fluorine
C. Sulfur
D. Nitrogen
E. *Oxygen
160. In which reaction hydrogen peroxide has reducing property?
A. PbS + 4H2O2→PbSO4 + 4H2O
B. 2H2O2 → H2O + O2
C. BaO2 + H2SO4 → H2O2 + BaSO4
D. *Cl2 + H2O2→2HCl + O2
E. 2 KI + H2SO4 + H2O2 → I2 + 2H2O + K2SO4
161. What products does hydrogen peroxide produce after its decomposition at the present of
heterogeneous catalyst (Pt or MnO2)?
A. Platinum dioxide and water
B. Permanganic acid and oxygen
C. Permanganic acid and water
D. Hydrogen and oxygen
E. *Water and oxygen
162. What is reaction use for the preparation of hydrogen peroxide in industry?
A. All are correct
B. *A and B
C. H2 + O2 → H2O2
D. 2NH4HSO4 → (NH4)2S2O8 → 2NH4HSO4 + H2O2
E. BaO2 + H2SO4 → H2O2 + BaSO4
163. Which elements form ozonide?
A. *Alkaline metals
B. Alkaline earth metals
C. Amphoteric metals
D. Transition metals
E. Nonmetals
164. What propery has ozone?
A. All are correct
B. Amphoteric property
C. Basic property
D. *Powerful oxidizing property
E. Powerful reducing property
165. Which elements form with oxygen amphoteric oxides?
A. All are correct
B. *Amphoteric metals
C. Transition metals
D. Nonmetals
E. Alkali metals
166. Which elements form with oxygen acidic oxides?
A. All are correct
B. Amphoteric metals
C. Transition metals
D. *Nonmetals
E. Alkali metals
167. Which elements form with oxygen basic oxides?
A. All are correct
Amphoteric metals
Transition metals
Nonmetals
*Alkali metals
168. What is laboratory preparation of oxygen?
A. *All are correct
B. Decomposition of mercury oxide
C. Decomposition of hydrogen peroxide
D. Decomposition of potassium permanganate
E. Electrolysis of water
169. What is industrially preparation of oxygen?
A. Distillational of water
B. *Fractional distillational of air
C. Decomposition of mercury oxide
D. Decomposition of hydrogen peroxide
E. Decomposition of potassium permanganate
170. Which is element a gas at ordinary temperature?
A. Polonium
B. Tellurium
C. Selenium
D. Sulfur
E. *Oxygen
171. What is chemical name of OF2?
A. Oxofluoric acid
B. Oxygen tetrafluoride
C. *Oxygen difluoride
D. Difluoride oxide
E. Fluorine oxide
172. What is cause the high boiling point in molecule of water?
A. Presence of two atoms of hydrogen
B. Presence of ionic bonds
C. Presence of metalic bonds
D. Presence of nonpolarcovalent bonds
E. *Presence of hydrogent bonds
173. What is the angle in the molecule of water?
A. *104,50
B. 114,20
C. 1200
D. 910
E. 900
174. What is allotropy of oxygen?
A. Amorphic and crystalline oxygen
B. White, red, black oxigen
C. Colourless and blue oxygen
D. Rhombic, monoclinic, plastic oxygen
E. *Oxygen and ozone
175. In which compound oxygen forms catination?
A. thiosulphuric acid
B. sulfuric acid
C. sulfur oxide
D. *hydrogen peroxide
E. water
176. Why can not oxygen have the oxidation number +6?
A. oxygen is gas
B.
C.
D.
E.
excitation possible there are p-orbitals present
excitation possible there are p-orbitals present
excitation possible there are d-orbitals present
*excitation not possible there are no d-orbitals
177. With which element oxygen has positive charge?
A. Hadrogen
B. *Fluorine
C. Nitrigen
D. Chlorine
E. Sulfur
178. Why does oxygen has less ionisation energies than nitrogen?
A. Absence of d-orbitals in Nitrogen and present it in Oxygen
B. Absence of d-orbitals in Oxygen and present it in Nitrogen
C. Cause nitrogen has more various oxidations states than oxygen
D. Cause the configuration of oxygen is more stability than nitrogen
E. *The configuration of oxygen is less stability, cause nitrogen has completely half filled
orbitals and its configuration is stable
179. What is the electronic configurations of VI-A group elements?
A. ns2np6
B. ns2np4nd2
C. ns2np5
D. ns2np3
E. *ns2np4
180. Which is element from VI-A group radioactive?
A. *Polonium
B. Tellurium
C. Selenium
D. Sulfur
E. Oxygen
181. What is the name of the members of oxygen family?
A. *Chalcogens
B. Oxoacids
C. Oxides
D. Hydrides
E. Halogens
182. Among the hydrides of the members of oxygen family, which has the weakest acidic
character?
A. No one correct
B. H2Te
C. H2Se
D. H2S
E. *H2O
183. Among the hydrides of the members of oxygen family, which has the maximum thermal
stability?
A. No one correct
B. H2Te
C. H2Se
D. H2S
E. *H2O
184. Among the hydrides of the members of oxygen family, which has the lowest boiling point?
A. No one correct
B. H2Te
C. H2Se
D. *H2S
B.
C.
D.
E.
E. H2O
185. Name the element of group VI-A which has the maximum ionisation energy:
A. Polonium
B. Tellurium
C. Selenium
D. Sulfur
E. *Oxygen
186. Name the element of group VI-A which has the highest metallic character:
A. Polonium
B. *Tellurium
C. Selenium
D. Sulfur
E. Oxygen
187. Name the element of group VI-A which has the highest melting point:
A. *Polonium
B. Tellurium
C. Selenium
D. Sulfur
E. Oxygen
188. Name the element of group VI-A which has the highest electronegativity:
A. Polonium
B. Tellurium
C. Selenium
D. Sulfur
E. *Oxygen
189. Which element of group VI-A shows maximum catenation?
A. Polonium
B. Tellurium
C. Selenium
D. *Sulfur
E. Oxygen
190. With which substance phosphorus acid has reducing property?
A. BaSO4
B. Zn
C. HI
D. KI
E. *KMnO4
191. With which substance has phosphine basic property?
A. KClO3
B. H2O2
C. NH4NO3
D. KMnO4
E. *HІ
192. With which substance will be orthophosphoric acid react?
A. Cu
B. *Na2CO3
C. SO2
D. KNO3
E. Hg
193. What is the name of Phosphorus compound with metal in which phosphorus has oxidation state
-3?
A. orthophosphate
B. *phosphide
C. phosphate
D. phosphine
E. pyrophosphate
194. Choose the formula of hypophosphorus acid
A. H3PO
B. H4P2O7
C. CH3PO4
D. H3PO3
E. *H3PO2
195. Choose the formula of phosphorus acid
A. H3PO
B. H4P2O7
C. H3PO4
D. *H3PO3
E. H3PO2
196. What the product will be form after hydrolysis ob bismuth (III) nitrate?
A. BiOH(NO3)2
B. Bi(OH)2NO3
C. Bi(OH)3
D. Bi2O3
E. *BiONO3
197. Choose the salt of orthophosphoric acid:
A. NaAsO2
B. Na2SO3S
C. KMnO4
D. Na2[PO3H]
E. *NaH2PO4
198. What kind of acid is hypophosphorus acid?
A. Stable and monobasic acid
B. Medium and doublebasic acid
C. *Unstable and monobasic acid
D. Weak and tetrabasic acid
E. Strong and tribasic acid
199. What does bismuth create the product after hydrolysis of its salt?
A. Medium salt of bismuth
B. *Oxo salt of bismuth
C. Acidic salt of bismuth
D. D. Bismuth oxide
E. E. Bismuth hydroxide
200. Qualitative test on Bismuth ion is the interaction with:
A. Na2HPO4 and MgCl2 in ammonia solution
B. H2O2 in base solution
C. I2 in water solution
D. *KI in excess in water solution
E. KMnO4 in sulfuric acid solution
201. From which row of the reactants As, Sb, Bi cann’t react?
A. With all can react
B. O2, H2SO4(concentrated), Halogen
C. O2, HNO3 (diluted), H2SO4 (concentrated)
D. *O2, HCl, H2
E. O2, HNO3, Halogen
202. What kind of properties has orthophosphoric acid?
A. Weak and monobasic acid
B. Medium and doublebasic acid
C. *Medium and tribasic acid
D. Weak and tetrabasic acid
E. Strong and tribasic acid
203. What kind of allotropy has Phosphorous?
A. Crystalline, amorphous
B. *White, black, red
C. Yellow, silver
D. Yellow, grey
E. Yellow, black
204. How can obtain Bismuth hydride?
A. BiCl3 + H2O
B. Bi + KOH + H2O
C. Bi + HCl
D. Bi + H2
E. *Zn3Bi2 + HCl
205. Qualitative test on phosphate ion is the interaction with:
A. *Na2HPO4 and MgCl2 in ammonia solution
B. H2O2 in base solution
C. I2 in water solution
D. KI in sulfuric acid solution
E. KMnO4 in sulfuric acid solution
206. Which oxide of the V-A elements has a weakly acid property?
A. Bi
B. Sb
C. *As
D. P
E. N
207. Which oxide of the V-A elements has a basic property?
A. *Bi
B. Sb
C. As
D. P
E. N
208. Which oxide of the V-A elements has an amphoteric property?
A. Bi
B. *Sb
C. As
D. P
E. N
209. Trihalides of P, As, Sb act as Lewis acid. Choose the reaction that discribes this property?
A. PCl3 + 3H2O → H3PO3 + 3HCl
B. 2AsCl3 + 3H2O → As2O3 + 6HCl
C. BiCl3 + 3H2O → BiOCl + 2HCl
D. 2PCl5 + 8H2O → 2H3PO4 + 10HCl
E. *PF3 + F2 → PF5
210. The trihalides are mainly cavalent except:
A. *BiH3
B. SbH3
C. AsH3
D. PH3
E. NH3
211. What is the most stable oxidation state for bismuth?
A. +5
B. *+3
C. *+2
D. +1
E. -3
212. What is the structure of the white phosphorus molecule?
A. Line
B. Octahedral
C. *Tetrahedral
D. Triple bond
E. Pyramidal
213. Choose the oxyacid of P having the oxidation state +3.
A. Diphosphoric acid
B. Hypophosphorus acid
C. Orthophosphoric acid
D. Hypophosphoric acid
E. *Phosphorus acid
214. Which of the following is not known?
A. PCl5
B. *SbCl5
C. SbCl3
D. SbCl3
E. AsCl5
215. Choose an electronic configuration of phosphorus (P0), if phosphorus is in VII A group of III
period and has number 17:
A. 1s22s22p63s23p2
B. 1s22s22p63s03p0
C. 1s22s22p63s23p4
D. *1s22s22p63s23p3
E. 1s22s22p63s2
216. Choose an electronic configuration of phosphorus ion (P+3), if phosphorus is in VII A group of
III period and has number 17:
A. 1s22s22p63s23p1
B. *1s22s22p63s23p0
C. 1s22s22p63s23p4
D. 1s22s22p63s23p5
E. 1s22s22p63s23p6
217. Choose an electronic configuration of phosphorus ion (P-3), is phosphorus in V A group of III
period and has number 15:
A. 1s22s22p73s13p6
B. 1s22s12p73s23p5
C. 1s22s22p63s13p6
D. 1s22s22p63s23p5
E. *1s22s22p63s23p6
218. One of allotropic modifications of phosphorus is:
A. Blue phosphorus
B. *White phosphorus
C. Green phosphorus
D. Yellow phosphorus
E. Crystalline phosphorus
219. What ions are the most present in water solution of orthophosphoric acid?
A. OHB. PO43C. HPO42D. H2PO3E. *H+
220. What compound is formed if Р2О5 react with water?
A. Н3Р
B. (НРО3)n
C. Н4Р2О7
D. *Н3РО4
E. Н2[РО3H]
221. What compound is formed if Р2О3 react with water?
A. Н3Р
B. (НРО3)n
C. Н4Р2О7
D. Н3РО4
E. *Н2[РО3H]
222. What is hydride the most unstable and the most strong reducing agent?
A. NH3
B. SbH3
C. AsH3
D. PH3
E. *BiH3
223. What compounds is formed when Н2О react with on PCl5?
A. Cl2 and H3PO4
B. HCl and H3PO3
C. *HCl and H3PO4
D. P2O3 and HCl
E. P2O5 and HCl
224. p –element is:
A. K
B. *Р
C. Fe
D. Сu
E. Mg
225. Diphosphoric acid can form after heating of orthophosphoric acid. What is formula of
diphosphoric acid?
A. H3PO4
B. H2[HPO3]
C. *H4P2O7
D. HPO3
E. H[H2PO2]
226. What oxidation number has Phosphorus in orthophosphoric acid?
A. +4
B. +3
C. +1
D. –3
E. *+5
227. What elements are p-elements?
A. Be, Ca, S
B. K, Br, Ba
C. Ca, Mg, Fe
D. Na, P, Cl
E. *P, O, S
228. What oxidation number has Phosphorus in phosphorus acid (H2[PO3H])?
A. *+3
B. +4
C. +1
D. –3
E. +5
229. The forming of hydrogen bond of nitrogen exists according to the…
A. Presence of 5 electrons on the outer shell
B. Big ionic radius
C. Medium electronegativities
D. *High electronegativities
E. Low electronegativities
230. What is maximal valency of nitrogen?
A. Hexa
B. Double
C. Mono
D. *Tetra
E. Penta
1.
2.
3.
4.
5.
6.
7.
PROPERTIES OF THE D-ELEMENTS
What are the products of this reaction KMnO4 + KOH →?
A. MnO2 + H2O + K2MnO4
B. K2MnO4 + H2O
C. MnO2 + H2O + K2O2
D. K2MnO4 + MnO2 + O2
E. *K2MnO4 + H2O + O2
The oxidation state of Cr in CrO3 is:
A. 7
B. 5
C. 4
D. 3
E. *6
What are the products of this reaction K2MnO4 + Cl2 →?
A. KCl + MnO4
B. B. ClO + KMnO4
C. KMnO4 + HCl
D. KCl + MnO2
E. *KCl + KMnO4
The oxidation state of Cr in K2CrO4 is:
A. 3
B. 4
C. 7
D. 5
E. *6
The oxidation state of Cr in K2Cr2O7 is:
A. 7
B. 3
C. 4
D. 5
E. *6
The oxidation state of Mn in HMnO4 is:
A. 4
B. 3
C. 5
D. *6
E. 7
The oxidation state of Mn in K2MnO4 is:
A. 3
B. 4
C. 7
D. 5
E. *6
8. The oxidation state of Mn in KMnO4 is:
A. 3
B. *7
C. 4
D. 5
E. 6
9. The chromate ion in acidic medium changes to:
A. Chromium (III) hydroxide
B. Superchromic acid
C. Chromium (VI) oxide
D. Chromium (IV) oxide
E. *Dichromate
10. The most abundant transition metal is:
A. Mn
B. Au
C. Zn
D. Ni
E. *Fe
11. Which metal has lowest boiling point?
A. Au
B. Cu
C. Mn
D. *Hg
E. Cs
12. The equivalent mass of KMnO4 in neutral medium is equal to:
A. Mol. wt/4
B. Mol. wt
C. Mol. wt/2
D. Mol. wt/5
E. *Mol. wt/3
13. The equivalent mass of KMnO4 in alkaline medium is equal to:
A. Mol. wt/4
B. *Mol. wt
C. Mol. wt/2
D. Mol. wt/5
E. Mol. wt/3
14. Which of the following ion has the smolest radii?
A. Ti2+
B. Co2+
C. Fe2+
D. *Ni2+
E. Mn2+
15. Which of the following is the acidic oxide?
A. MnO2
B. MnO
C. Mn3O4
D. Mn2O3
E. *Mn2O7
16. Which of the following does not belong to the group VII-B?
A. *Fluorine and Chlorine
B. Chlorine
C. Rhenium
D. Technetium
E. Manganese
17. Mn3O4 is a mixed oxide of
A. Mn and Mn2O3
B. MnO2 and Mn2O3
C. MnO and Mn2O3
D. *MnO and MnO2
E. MnO2 and MnO3
18. In a reaction, K2MnO4 is converted into KMnO4. The change in the oxidation number of Mn
is:
A. +5
B. +2
C. *-1
D. +1
E. Zero
19. When potassium dichromate is heated with potassium hydroxide and the solution obtained is
acidified by sulfuric acid, the colour becomes:
A. White
B. Green
C. Red
D. Yellow
E. *Оrange
20. Which of the following ion does not give coloured solution?
A. CrO42B. Cr3+
C. Mn2+
D. *Zn2+
E. Fe2+
21. The adition of iron to the concentrated sulfuric acid at the heating gtves the next products:
A. doesn’t react
B. FeSO4, H2
C. Fe2(SO4)3, H2
D. *Fe2(SO4)3, H2O, SO2
E. FeSO4, H2, H2O
22. The base properties has:
A. FeО3
B. Cr2О3
C. СrО3
D. Fe2О3
E. *FeO
23. The addition of iron to the diluted nitric acid gives the next products:
A. Fe(NO)2 , H2O, N2O, N
B. Fe(NO)2 , H2O, NO2
C. Fe(NO)2, H2
D. Fe(NO)2 , H2O
E. *Fe(NO)2 , H2O, N2O
24. What’s statement wrong?
A. Iron doesn’t react with concentrated nitric acid
B. *Adition of SCN- ion to aqueous Fe3+ gives dark blue sediment
C. 2Fe + 3Cl2 → 2FeCl3
D. At the heating iron react with water
E. At the high temperature iron with oxygen forms iron(ІІ, III) oxides
25. The chemical formula of red prussiate salt is:
A. Na3[Fe(CN)5NO]
B. KSCN
C. *K3[Fe(CN)6]
D. Fe3[Fe(CN)6]2
E. K4[Fe(CN)6]
26. The chemical formula of yellow prussiate salt is:
A. NaSCN
B. Na3[Fe(CN)5NO]
C. KSCN
D. Fe3[Fe(CN)6]2
E. *K4[Fe(CN)6]
27. Iron (ІІ) hydroxide can be formed in the reaction:
A. Fe + H2O →
B. *FeCl2 + 2NaOH →.
C. Fe3O4 + H2O →.
D. Fe2O3 + H2O →.
E. FeO + H2O →
28. What are products that are formed in this reaction: Fe(OH)2 + H2O + O2 →
A. Fe3O4
B. *Fe(OH)3
C. Fe2O3
D. FeO
E. Fe2O3·хH2O
29. What are products that are formed in this reaction: Fe(OH)2 + HCl ?
A. Fe(OH)2Cl + H2O
B. Fe(OH)Cl2 + H2O
C. Fe(OH)2Cl + H2O
D. FeCl2 + H2O
E. *Fe(OH)Cl + H2O
30. What are products that are formed in this reaction: FeO + HNO3 (dilute) →?
A. Fe(NO3)3+ H2O
B. Fe(NO3)3 + NH4NO3 + H2O
C. Fe(NO3)3 + NO2 + H2O
D. *Fe(NO3)3 + NO + H2O
E. Fe(NO3)2 + H2O
31. What are products that are formed in this reaction: FeO + 2HCl →?
A. FeCl2 + H2
B. FeCl3 + H2O
C. FeCl3
D. FеCl2
E. *FeCl2 + H2O
32. Hydrochloric acid and dilute sulfuric acids can oxidize iron to:
A. Fe6+
B. Fe1+
C. Fe0
D. *Fe2+
E. Fe3+
33. The iron oxide (III) has amphoteric propertied because it can react with:
A. H2SO4, Ca(OH)2, NO
B. *HCl, H2SO4, NaOH
C. H3PO4, HF, NO
D. HCl, H2SO4, Cu(OH)2
E. H2SO4, H3PO4, N2O
34. Formula of cementite (iron carbide) is:
A. FeCl2
B. Fе2O3
C. Fe3O4
D. *Fe3C
E. FeS2
35. Iron copperas formula is:
A. FeS29H2O
B. CuSO45H2O
C. Fe2(SO4)39H2O
D. *FeSO47H2O
E. FeSO4
36. Formula of sulfuric pyrites:
A. Fe2O3
B. FeSO4
C. *FeS2
D. FeS
E. CuS
37. The formula of yellow prussiate (potassium ferrocyanide) is:
A. NaSCN
B. Na3[Fe(CN)5NO]
C. KSCN
D. Fe3[Fe(CN)6]2
E. *K4[Fe(CN)6].
38. The formula of the red prussiate (potassium ferricyanide) is:
A. Na3[Fe(CN)5NO]
B. KSCN
C. *K3[Fe(CN)6]
D. Fe3[Fe(CN)6]2
E. K4[Fe(CN)6]
39. Choose an electronic configuration of iron:
A. 1s22s22p63s23p63d54s3
B. *1s22s22p63s23p63d64s2
C. 1s22s22p73s13p63d64s2
D. 1s22s22p63s23p64s24p6
E. 1s22s22p63s23p64s2
40. Choose an electronic configuration of iron ion of Fe2+:
A. 1s22s22p63s23p63d44s2
B. 1s22s22p63s23p63d54s0
C. 1s22s22p63s23p63d64s2
D. *1s22s22p63s23p63d64s0
E. 1s22s22p63s23p63d64s1
41. Choose an electronic configuration of iron’s ion Fe3+:
A. 1s22s22p63s23p63d34s2
B. *1s22s22p63s23p63d54s0
C. 1s22s22p63s23p63d64s2
D. 1s22s22p63s23p63d64s0
E. 1s22s22p63s23p63d64s1
42. Iron’s oxides are:
A. FeO, FeO3, FeO4
B. Fe2O4, FeO, Fe2O5
C. Fe2O, FeO, Fe2O4
D. *FeO, Fe2O3, FeO3
E. Fe2O3, Fe3O4, Fe4O3
43. What salts can not react with Fe?
A. Ві(NO3)3
B. *MgSO4
C. Hg(NO3)2
D. Ag2SO4
E. CuSO4
44. Choose gaseous product in the reaction: Fe + H2SO4 (dilute)  FeSO4 +?
A. H2О
B. H2S
C. *H2
D. SO2
E. S
45. What compound is formed when iron react with chlorine?
A. Fe2Cl2
B. FeCl6
C. FeCl
D. FeCl2
E. *FeCl3
46. KSCN is Qualitative test on:
A. Iron anion FeО2B. Iron (II) ion (Fe2+)
C. Nickel (II) ion
D. *Iron (III) ion (Fe3+)
E. Carbonate-ion
47. Qualitative test on Fe2+ ion is with
A. KCl
B. K4[Fe(CN)6]
C. KOH
D. *K3[Fe(CN)6]
E. KSCN
48. Iron exists in nature as
A. bauxite
B. *hematite
C. cinnabar
D. rutile
E. galena
49. What compound has basic property?
A. FeО3
B. Cr2О3
C. СrО3
D. Fe2О3
E. *FeO
50. Iron (II) salts can form if iron reacts with all acids except:
A. НІ
B. H3PO4
C. H2SO4(diluted)
D. *HNO3
E. HCl
51. Iron’s alloy is:
A. Malachite
B. Duralumin
C. Brass
D. *Steel
E. Bronze
52. Iron’s nature compound is
A. Sylvinite
B. *Pyrite
C. Dolomite
D. Carnallite
E. Galena
53. Iron can have such oxidation number as:
A. Only +2
B. +3, +4, +5
C. +2, +3, +4
D. *0, +2, +3, +6
E. 0, +1, +2, +3
54. What reagent is qualitative test on iron’s cation Fe3+ ?
A. Sodium nitroprussiate
B. *Yellow prussiate of potash (potassium ferrocyanide)
C. Copper (II) hydroxide
D. Red prussiate of potash (potassium ferricyanide)
E. Sodium cyanide
55. Iron can not react with …. at room temperature
A. Concentrated HCl
B. *Concentrated HNO3
C. Dilute HNO3
D. Dilute sulfate acid
E. Halogens
56. What manganese compound has both oxidation and redaction properties?
A. MnSO4
B. KMnO4
C. MnO
D. Mn2O7
E. *MnO2
57. What oxide has not manganese?
A. *Mn2O5
B. Mn2O7
C. MnO2
D. Mn2O3
E. MnO
58. Permanganate ion is:
A. MnO43B. MnO2C. MnO42D. MnO32E. *MnO459. Manganate ion is:
A. MnO43B. MnO2C. MnO32D. MnO4E. *MnO4260. What compound can form if manganese reacts with the concentrated nitric acid?
A. Mn(NO3)2, H2
B. *Mn(NO3)2, NO2, H
C. Mn(NO3)2, N2, H2O
D. Mn(NO2)2, NO, H2O
E. Mn(NO)2, NO, H2O
61. What compound has amphateric properties?
A. CrO
B. *Cr(OH)3
C. Cr(OН)2
D. CrСl2
E. CrO3
62. What compound has amphateric properties?
A. Cr(OH)2
B. CrO
C. K2CrO4
D. *Cr2O3
E. CrO3
63. What compound has only basic properties?
A. *CrO
B. Cr(OH)3
C. CrO2
D. Cr2O3
E. CrO3
64. Choose an electronic configuration of chrome ion Cr+6:
A. 1s22s22p63s23p63d44s2
B. 1s22s22p63s23p83d54s1
C. *1s22s22p63s23p63d04s0
D. 1s22s22p53s23p63d54s2
E. E. 1s22s32p63s23p63d54s2
65. Choose an electronic configuration of chrome ion Cr+2:
A. 1s22s22p63s23p63d44s2
B. *1s22s22p63s23p63d4
C. 1s22s22p63s23p83d54s1
D. 1s22s22p53s23p63d54s2
E. 1s22s32p63s23p63d54s2
66. Choose an electronic configuration of chromium ion Cr+3 :
A. *1s22s22p63s23p63d3
B. 1s22s22p63s23p83d54s1
C. 1s22s22p63s23p63d44s2
D. 1s22s22p53s23p63d54s2
E. 1s22s32p63s23p63d54s2
67. What ion exists in solution, when this solution has orange colour?
A. Sn(IV)
B. Cr3+
C. Al3+
D. *Cr2O72E. As(III) or As(V)
68. What is cation in solution, when this solution has bluer-green colour?
A. Sn(II) or Sn(IV)
B. *[Cr(H2O)6]3+
C. Al3+
D. Zn2+
E. As(III) or As(V)
69. When Mn2+ is oxidized by oxidizing agents at a low рh Mn2+ becomes…
A. . MnO43B. MnO42C. MnO2D. Mn2O4E. *MnO4-
70. Qualitative test on Mn2+ ion is with Sodium bismuthate, its chemical formula is …. When
Mn2+ will present you can see ….colour.
A. NaBiO3, green
B. *NaBiO3, purple
C. NaBi2O3, red
D. Na2BiO3, dark-blue
E. NaBiO3, blue
71. What is the chemical formula of Sodium rhenate?
A. NaReO3
B. *Na2ReO4
C. NaReO4
D. Na2ReO3
E. Na3ReO3
72. What is compound that has only basic property?
A. *Cr(OH)2
B. Cr(OH)3
C. CrO2
D. Cr2O3
E. CrO3
73. What is the chemical formula of Permanganic acid?
A. H3MnO4
B. H2MnO4
C. *HMnO4
D. H2MnO3
E. HMnO3
74. What is compound that has only acidic property?
A. Cr(OH)2
B. Cr(OH)3
C. CrO2
D. Cr2O3
E. *CrO3
75. Potassium permanganate decomposes into following products at the heating such as…
A. K2MnO4 + MnO + O2
B. K2MnO4 + MnO2 + O3
C. KMnO4 + MnO + O2
D. KMnO4 + MnO2 + O2
E. *K2MnO4 + MnO2 + O2
76. When to add an excess of a basic to the salt of Chromium (ІІІ) there will be observed green
colour of the solution cause there are …. ions present
A. Cr2(OH)4B. *Cr(OH)4C. Cr2O72D. CrO42E. CrO277. When Chromium(ІІІ)chloride reacts with an insufficient quantity of Sodium hydroxide, the
basic salt is formed its chemical formula is….
A. Cr(OH)3Cl
B. Cr(OH)Cl3
C. *Cr(OH)2Cl
D. Cr(OH)Cl
E. Cr(OH)2Cl2
78. The compounds of Chromium (ІІІ) are oxidized to dichromate ions…..which have ……
colour at a low pH.
A. *CrO72-; orange
B. Cr2O72- ; yellow
C. CrO42- ; dark-blue
D. Cr2O42- ; blue
E. CrO42- ; yellow
79. Chromium (ІІІ) compounds are oxidized at a high ph (pH>7) by the oxidizing agent to …,
and at a low ph to …, their colours accordingly are … and …
A. CrO42- і CrO72-, orange and blue-green
B. *CrO42- і Cr2O72-, yellow and orange
C. CrO42- і CrO72-, blue and yellow
D. Cr2O42- і Cr2O72-, orange and blue
E. CrO42- і Cr2O72-, orange and yellow
80. During the formation of perchromic acid… when the chromium compound will be present
there will be ….. colour
A. H2CrO4, green
B. H2Cr2O7, orange
C. H2CrO7, colorless
D. H2CrO5, yellow
E. *H2CrO6, blue
81. What the ion can you find in the orange solution?
A. Sn(II) and Sn(IV)
B. [Cr(H2O)6]3+
C. Al3+
D. *Cr2O72E. As(III) and As(V)
82. The Cr3+ is oxidized by Potassium permanganate at low pH to……
A. Cr2O3
B. Cr3+
C. CrO42D. *Cr2O72E. CrO
83. Chromium, molybdenum, tungsten, have ... crystalline grate
A. Molecular
B. Covalent
C. Atomic
D. *Metallic
E. Ion
84. Chromium is …. colour metal
A. Colorless
B. Yellow
C. Black
D. Rose
E. *Silver-white
85. The solution is yellow. What the ion can you find in this solution?
A. Sn(II) and Sn(IV)
B. Cr3+
C. * CrO42D. Zn2+
E. As(III) and As(V)
86. What ion exists in solution, when this solution has yellow colour?
A. Sn(II) or Sn(IV)
B. Cr3+
C. *CrO42D. Zn2+
E. As(III) or As(V)
87. Potassium permanganate can oxidize Cr3+ ions to dichromate-ions, which colour are:
A. Bluer
B. Brown
C. Green
D. *Orange
E. Yellow
88. How does the strength of acids change in the raw HReO4– HTcO4 – HMnO4?
A. the first increase than decrease
B. the first decrease than increase
C. *increase
D. decrease
E. doesn’t change
89. For all elements of the 7-th B group which have oxidation number +4, they have such
chemical properties as….
A. No one correct
B. *Amphoteric and oxidizing-reducing agent
C. Oxidizing agent
D. Reducing agent
E. Amphoteric
90. For all elements of the 7-th B group the stable oxidation number is +2, it means that
compounds with this oxidation state have such chemical properties as….
A. Only reducing agent
B. *Basic and oxidizing-reducing agent
C. Either acid or basic
D. Only basic
E. Only acid
91. For all elements of the 7-th B group the lowest oxidation state is…..
A. +3
B. +2
C. *0
D. -1
E. -2
92. For all elements of the 7-th B group the highest oxidation number is +7, it means that
compounds with this oxidation state have such chemical properties as….
A. Neither oxidizing agent nor reducing agent
B. Acid and reducing agent
C. Amphoteric and reducing agent
D. *Acid and oxidizing agent
E. Basic and acid
93. When Mn2+ ion is oxidized by oxidizing agents at a low рh you can see the ….colour
A. *Purple
B. yellow
C. black
D. blue
E. Green
94. For all elements of the 7-th B group the highest oxidation state is:
A. *+7
B. +6
C. +4
D. +3
E. +2
95. There are a mix of Сr3+ , Mn2+, Zn2+ ions. How can you identify Mn2+ ion in this solution?
To this solution need to add…..
A. Sodium iodide
B. Diluted solution of ammonia
C. Acid
D. *Hydrogen peroxide at a high pH
E. Ammonia
96. What is the colour of the permanganate solutions?
A. Green
B. Yellow
C. Red
D. Colourless
E. *Purple
97. Chromium doesn’t react with:
A. very diluted sulfuric acid
B. diluted phosphoric acid
C. *concentrated nitric acid
D. diluted sulfuric acid
E. diluted hydrochloric acid
98. Which element is the most similar according its chemical properties to Chromium?
A. Tungsten
B. Selenium
C. Sulfur
D. Technetium
E. *Molybdenum
99. You can determine the Mn2+ ion using the following reaction…..
A. with a very diluted sulfuric acid
B. with a diluted hydrochloric acid
C. with Bromine at a low pH
D. *with Sodium bismuthate at a low pH
E. the formation of white sediment of sodium hydroxide
100.
Potassium permanganate reacts with H2O2 at a low pH as:
A. Neither oxidant nor reducing agent
B. Oxidant and reactant
C. Decompose
D. Reducing agent
E. *Oxidizing agent
101.
What is the lowest oxidation state of Chromium?
A. -2
B. -1
C. *0
D. +2
E. +1
102.
What is the highest oxidation state of Chromium?
A. +2
B. -3
C. -6
D. +3
E. *+6
103.
Chromium (ІІІ) oxide is the….. colour salt
A. Blue
B. *Dark-green
C. Black
D. Orange
E. Yellow
104.
When to add the basic to the orange solution of dichromates you can see the….
colour
A. Orange
B. Black-brown
C. Red
D. Blue
E. *Yellow
105.
When to add the acid to the yellow solution of chromates you can see the …. colour
A. *Orange
B. Black-brown
C. Red
D. Blue
E. Yellow
106.
What is the name of the chromium’s anion that contains the atom of chromium with
the oxidation state +6?
A. Cromium(III)
B. Carbide
C. Carbonile
D. *Chromate
E. Cromite
107.
At which oxidation state Chromium has only reducing property?
A. +4
B. +2
C. *0
D. +3
E. +6
108.
At which oxidation state Chromium has only oxidizing property?
A. +4
B. +2
C. 0
D. +3
E. *+6
109.
You can get Chromium(ІІІ) oxide using all following substances except
A. Chromium (ІІІ) hydroxide
B. *Chromium (ІІІ) chloride
C. Sodium Dichromate
D. Potassium dichromate
E. Ammonia dichromate
110.
What is the ammonia dichromate’s salt colour?
A. Blue
B. Brown
C. *Orange
D. Yellow
E. Blue
111.
The solution is blue-green. What the ion can you find in this solution?
A. Sn(II) and Sn(IV)
B. *Cr3+
C. Al3+
D. Zn2+
E. As(III) and As(V)
112.
Qualitative test on Cr2O72- anion is formation of the unstable compound which has
blue colour. What is the name of the unstable compound?
A. Chromium(III) chloride
B. *Perchromic acid
C. Ammonia cromite.
D. Potassium dichromate.
E. Sodium chromate
113.
What compounds are insoluble in water?
A. AgCl, AgBr, CuCl2, CuI
B. Ag Cl, Ag NO3, CuCl, CuI
C. Ag Cl, Ag NO3, CuCl, CuI
D. *Ag NO3, AgBr, CuCl, CuI
E. AgCl, AgNO3, CuSO4, CuI
114.
What compound can be formed if silver react with concentrated H2SO4?
A. O2
B. H2S
C. *SO2
D. SO3
E. SO
115.
What compound can be formed if cupper reacts with concentrated HNO3?
A. N2O5
B. NO
C. *NO2
D. N2O3
E. NO3
116.
What compound can be formed if cupper reacts with concentrated H2SO4?
A. O2
B. H2S
C. SO3
D. *SO2
E. SO
117.
Cupper can react with sulphur and form the next compound such as:
A. CuS
B. *Cu2S
C. CuSO4
D. CuSO3
E. CuSO4*5H2O
118.
What oxidation numbers are typical for mercury in compounds?
A. *+1, +2
B. +2, +3
C. +1,+3
D. +2, +4
E. +3, +4
119.
A Tollens’ reagent is qualitative test on an aldehyde’s group. What is its formula?
A. Ag2S
B. Ag2SO4
C. *[Ag (NH3)2]OH
D. AgNO3
E. AgCl
120.
Qualitative test on an aldehyde’s group is the reaction with ammonia solution of
silver nitrate. This process can be represented by the equation such as:
A. 2AgNCS + 3H2SO4(conc) + 2Н2О →2СSO + 2NH4HSO4 + Ag2SO4
B. 2AgI + KOH → Ag2O + KI + HIC. *2[Ag (NH3)2]NO3 + 2H2O + R-С(O)H → 2Ag + R-С(O)O-NH4+ + 2NH4NO3 +
NH4OH
D. 2Ag NO3 + 2NH4OH(dilute) → AgО + 2NH4NO3 + H2O
E. 4AgNO3 + 2 Cl2 → 4AgCl + 2N2O5 + O2
121.
Silver can have black colour on the air. This process can be represented by such
equation as:
A. *2Ag + H2S → AgS + H2↑
B. Ag2O + H2O2(conc) → 2Ag↓ + H2O + O2
C. Ag2O + H2SO4 → Ag2SO4 +H2O
D. Ag + 2HNO3 → AgNO3 + NO2 + H2O
E. 2Ag + Ѕ O2 → Ag2O
122.
Zinc is microelements and it can use medicine. What electronic configuration has
zinc?
A. *1s22s22p63s23p64s23d10
B. 1s22s22p63s23p64s13d104p2
C. 1s22s22p63s23p64s13d9
D. 1s22s22p63s23p64s13d5
E. 1s22s22p63s23p64s13d10
123.
Mercury can have oxidation number +1 or +2. What compound containes mercury
with oxidation number +2?
A. Hg2SO4
B. Hg2(NO3)2•2H2O
C. *K2[HgI4]
D. Hg2Cl2
E. Hg2O
124.
What salt has acidic medium in water solution?
A. K2SO3
B. NaCl
C. Na3PO4
D. Na2B4O7
E. *ZnSO4
125.
Which reaction produces AgNO3?
A. AgCl + NH4NO3
B. Ag2O + KNO3
C. *Ag + HNO3
D. Ag + KNO3
E. AgCl + NaNO3
126.
Electronic configuration of 29Cu is:
A. *[Ar] 3d10 4s1
B. [Ar] 3d8 4s2
C. [Ar] 3d6 4s2
D. [Ar] 3d9 4s2
E. [Ar] 3d7 4s2
127.
What metal is liquid at room temperature?
A. Cd
B. Zn
C. *Hg
D. Cu
E. Ag
128.
What oxidation numbers are typical for gold in compounds?
A. +5
B. *+3
C. +1
D. +4
E. +5
129.
What oxidation numbers are typical for cupper in compounds?
A. *+1, +2
B. +2, +3
C. +1, +3
D. +2, +4
E. +3, +4
130.
What oxidation numbers are typical for silver in compounds?
A. +5
B. +4
C. *+1
D. +2
E. +3
131.
Au(OH)3 can dissolve in acids and form a complex compound: H[AuCl4]. What are
valency and coordination number of gold in this complex compound?
A. III, 3
B. *III, 4
C. II, 4
D. II, 3
E. III, 1
132.
Au(OH)3 can dissolve in base and form a complex compound: Na[Au(OH)4]. What
are oxidation and coordination numbers of gold in this complex compound?
A. -2, 4
B. -2, 5
C. +2, 5
D. -3, 4
E. *+3, 4
133.
Choose row of elements which belongs to the II B sub-group:
A. Cu, Zn, Ag
B. Cu, Au, Ag
C. *Zn, Cd, Hg
D. Au, Ag, Hg
E. Zn, Co, Ni
134.
Choose row of elements which belongs to the I B group:
A. Cu, Zn, Ag
B. *Cu, Au, Ag
C. Zn, Cd, Hg
D. Au, Ag, Hg
E. Zn, Co, Ni
135.
Simple compound in nature is such metal as:
A. Calcium
B. *Cupper
C. Lithium
D. Sodium
E. Potassium
136.
Gold can dissolve in such acid hot solution as:
A. HClO4
B. *H2SeO4
C. HCl
D. HNO3
E. H2SO4
137.
Silver like copper can not react with:
A. Concentrated nitric acid
B. Mixture of concentrated nitric acid and hydrochloric acid
C. Dilute nitric acid
D. Concentrated sulfuric acid
E. *Dilute hydrochloric and sulfuric acids
138.
What can product be formed if copper reacts with concentrated nitric acid?
A. *NO2
B. N2
C. N2O
D. NO
E. NH3
139.
What is element from the ІІ В group that has amphoteric property?
A. Only mercury
B. All elements
C. Cadmium and mercury
D. *Only zinc
E. Zinc and cadmium
140.
Cupper (II) hydroxide can form complex compounds with the excess of bases. What
the coordination number has copper in its complex compound?
A. 2
B. *4
C. 6
D. 5
E. 3