С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
«To conformed»
Prorector of teaching and educational work
professor Tulebaev K.A.
________________
to conform on central methodogical meeting
protocol _____of ____________2012 y.
QUESTIONS FOR INTERVIEW
IN CHEMISTRY FOR ENTRANS IN KazNMU
1 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
Periodic law by D.I.Mendeleev's. Atom structure
1. An element has serial number 11 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
2. An element has serial number 19 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
3. An element has serial number 12 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
4. An element has serial number 20 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
5. An element has serial number 26 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
6. An element has serial number 29 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
7. An element has serial number 30 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
8. An element has serial number 13 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
9. An element has serial number 6 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
10. An element has serial number 7 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
2 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
valences this element can have in compounds? Write the formula of highest oxide of this
element.
11. An element has serial number 8 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
12. An element has serial number 17 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
13. An element has serial number 14 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
14. An element has serial number 15 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
15. An element has serial number 16 define: а) charge of nucleus atom b) number of
electrons c) number of neutrons and protons. Write electronic formula of element. What
valences this element can have in compounds? Write the formula of highest oxide of this
element.
The bases classes of inorganic compounds.
1. Metal’s. Write the chemical reactions of sodium with the next substances
а) О2; b) Cl2; c) H2O; d) HCl; e) S.
2. Metal’s. Write the chemical reactions of sodium with the next substances: а) О2; b)
N2; c) H2O (t); d) HCl; e) CO2.
3. Metal’s. Write the chemical reactions of sodium with the next substances: а) О2; b)
Cl2; c) C; d) N2; e) H2O.
4. Metal’s. Write the chemical reactions of sodium with the next substances: а) Fe2О3;
b) Br2; c) H2SO4(diluted.); d) H2O (NaOH); e) С.
5. Metal’s. Write the chemical reactions of sodium with the next substances: а) О2; b)
Br2; c) CuSO4; d) HCl; e) S.
6. Non-metals. Write the chemical reactions of sulfur with the next substances: а) О2;
б) Н2; в) Cu; г) Fe; д) Al.
7. Non-metals. Write the chemical reaction of hydrogen with the next substances: а)
О2; б) CuO; в) Cl2; г) Ca; д) S.
8. Non-metals. Write the chemical reaction of oxygen with the next substances: а) С;
б) P; в) CH4; г) Fe; д) S.
9. Non-metals. Write the chemical reaction of Carbon with the next substances: а) О2;
3 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
б) Cl2; в) H2; г) CuO; д) Ca.
10.Non-metals. Write the chemical reaction of chlorine with the next substances: а) H2;
б) Cu; в) H2O; г) KBr; д) Fe.
11.Acid oxide. Write the chemical reactions of sulfur oxide (II) with the following
substances: а) CaO; б) NaOH; в) H2O; г) O2; д) H2S.
12.Acid oxide. Write the chemical reactions of sulfur oxide (III) with the following
substances: а) H2O; б) CaO; в) NaOH (deficiency); г) NaOH (excess); д) H2S.
13.Basic oxide. Write the chemical reactions of calcium oxide with the following
substances: а) СО2; б) SO3; в) H2O; г) HCl; д) H3PO4.
14.Basic oxide. Write the chemical reactions of aluminum oxide with the following
substances: а) Cr2O3; б) HCl; в) NaOH; г) H2SO4; д) Fe2O3.
15.Basic oxide. Write the chemical reactions of copper oxide (II) with the following
substances: а) H2; б) SO3; в) HNO3; г) HCl; д) C.
16. The acids. Write the chemical reaction of hydrochloric acid with the following
substances: а) Zn; б) CuO; в) Al(OH)3; г) AgNO3; д) KOH.
17.The acids. Write the chemical reactions of sulfuric acid with the following
substances: а) Fe; б) ZnO; в) Cu(OH)2; г) FeS; д) Ba(NO3)2.
18.The acids. Write the chemical reaction of nitric acid with the following substances:
а) Сu (with the formation of NO2); б) Fe2O3; в) Ca(OH)2; г) Zn(OH)2; д) Na2CO3.
19.The acids. Write the chemical reaction of phosphoric acid with the following
substances: а) Na; б) CaO; в) NH3; г) NaOH; д) AgNO3.
20. The base. Write the chemical reaction of sodium hydroxide with the following
substances: а) HCl; б) Al(OH)3; в) SO3; г) Cu(NO3)2; д) Zn.
21. The salts. Write the chemical reaction of sodium carbonate with the following
substances: а) H2SO4; б) CaCl2; в) H2CO3; г) Ba(OH)2.
22.The salts. Write the chemical reaction of silver nitrate with the following substances:
а) NaOH; б) NaCl; в) NaBr; г) NaI; д) Na3PO4. Indicate the color of formed
precipitation.
23.The salts. Write equations of chemical reactions of sulfate of copper (II) with the
following substances: а) Fe; б) NaOH; в) BaCl2; г) Pb(NO3)2.
24.The salts. Write equations of chemical reactions of sulfide of sodium with the
following substances: а) Pb(CH3COO)2; б) H2SO4; в) H2S; г) AgNO3.
25.Write equations of chemical reactions of water with the following substances: а) Li;
б) P2O5; в) CaO; г) Na2O; д) CaC2.
Genetic bound between separate classes of inorganic compounds
1. Write the equations reactions according to the scheme:
Ca → CaO → Ca(OH)2 → Ca(NO3)2 → CaSO4
Which class belong this compounds? Write the name of this compound.
2. Write the equations reactions according to the scheme:
Al2O3 → Al2(SO4)3 → Al(OH)3 → Al2O3
4 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
Which class belong this compounds? Write the name of this compound.
3. Write the equations reactions according to the scheme:
CaCO3 → CaO → Ca(OH)2 → CaCO3 → Ca(NO3)2
Which class belong this compounds? Write the name of this compound.
4. Write the equations reactions according to the scheme:
Cu → CuO → CuCl2 → Cu(OH)2 → CuO
Which class belong this compounds? Write the name of this compound
5. Write the equations reactions according to the scheme:
CuO → Cu → CuSO4 → Cu(OH)2 → Cu(NO3)2
Which class belong this compounds? Write the name of this compound
6. Write the equations reactions according to the scheme:
Mg → MgO → Mg(OH)2 → MgSO4
Which class belong this compounds? Write the name of this compound
7. Write the equations reactions according to the scheme:
C → CO2 → Na2CO3 → CO2 → CaCO3
Which class belong this compounds? Write the name of this compound
8. Write the equations reactions according to the scheme:
Fe2(SO4)3 → Fe(OH)3 → Fe2O3 → Fe2(SO4)3
Which class belong this compounds? Write the name of this compound
9. Write the equations reactions according to the scheme:
P → P2O5 → H3PO4 → Ca3(PO4)2 → H3PO4 → Ca(H2PO4)2
Which class belong this compounds? Write the name of this compound
10.Write the equations reactions according to the scheme:
Al2(SO4)3 → Al(OH)3 → Al2O3 → AlCl3 → Al(OH)3 → Al(OH)2Cl
Which class belong this compounds? Write the name of this compound
11.Write the equations reactions according to the scheme:
S → SO2 → SO3 → ZnSO4 → Zn(OH)2 → Zn
Which class belong this compounds? Write the name of this compound
12.Write the equations reactions according to the scheme:
Na → NaOH → NaHCO3 → Na2CO3 → Na2SO4
Which class belong this compounds? Write the name of this compound
13.Write the equations reactions according to the scheme:
Na2SO4 → NaCl → Na → Na2O → NaOH
Which class belong this compounds? Write the name of this compound
14.Write the equations reactions according to the scheme:
N2 → NH3 → (NH4)2SO4 → NH4Cl → NH3
Which class belong this compounds? Write the name of this compound
15.Write the equations reactions according to the scheme:
KBr → Br2 → HBr → NaBr → AgBr
Which class belong this compounds? Write the name of this compound.
5 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
16.Write the equations reactions according to the scheme:
S → FeS → H2S → KHS → K2S
Which class belong this compounds? Write the name of this compound
17.Write the equations reactions according to the scheme:
SiO2 → Si → SiO2 → Na2SiO3 → H2SiO3 → SiO2
Which class belong this compounds? Write the name of this compound
18.Write the equations reactions according to the scheme:
Na2O → Na2CO3 → NaHCO3 → CO2
Which class belong this compounds? Write the name of this compound
19.Write the equations reactions according to the scheme:
C → CO → CO2 → CaCO3 → CaO → CaSO4
Which class belong this compounds? Write the name of this compound
20.Write the equations reactions according to the scheme:
Zn → ZnCl2 → Zn(OH)2 → K2[Zn(OH)4]
Which class belong this compounds? Write the name of this compound
The hydrolysis of salts
1. Which of the salt is hydrolyzed:
(NH4)2SO3; CaBr2
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
2. Which of the salt is hydrolyzed:
Ca(CH3COO)2; Ba(NO3)2
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
3. Which of the salt is hydrolyzed: ZnSO4; Na2SO4
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
4. Which of the salt is hydrolyzed: (NH4)2SO4; KI
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
5. Which of the salt is hydrolyzed: K3PO4; CaCl2
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
6. Which of the salt is hydrolyzed: Fe2(SO4)3; K2SO4
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
7. Which of the salt is hydrolyzed: CuSO4; Na2SO4
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
8. Which of the salt is hydrolyzed: K2SiO3; NaCl
6 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
Write the hydrolysis reaction in the molecular and ionic form.
Determine reaction medium.
9. Which of the salt is hydrolyzed: LiBr; Na2CO3
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
10.Which of the salt is hydrolyzed: K2S; CaSO4
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
11.Which of the salt is hydrolyzed: Al2S3; Ca(NO3)2
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
12.Which of the salt is hydrolyzed: Ba(NO3)2; ZnSO4
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium..
13.Which of the salt is hydrolyzed: AlCl3; NaNO3
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
14.Which of the salt is hydrolyzed: KNO3; Cu(NO3)2
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
15.Which of the salt is hydrolyzed: Na2S; BaSO4
Write the hydrolysis reaction in the molecular and ionic form. Determine the
reaction medium.
The oxidation-reduction reactions
1. To equalize the oxidation-reduction reaction by electron balance method
KNO3 + C + S → K2S + N2 + CO2
Determine the degree of oxidation of elements. Write the oxidant and reductant.
2. To equalize the oxidation-reduction reaction by electron balance method
Na + HNO3(разб.) → NaNO3 + NH4NO3 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
3. To equalize the oxidation-reduction reaction by electron balance method
K2Cr2O7 + H2S + H2SO4 → S + Cr2(SO4)3 + K2SO4 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
4. To equalize the oxidation-reduction reaction by electron balance method
Mg + HNO3 → Mg(NO3)2 + N2 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
5. To equalize the oxidation-reduction reaction by electron balance method
KI + H2SO4 → K2SO4 + H2S + I2 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
7 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
6. To equalize the oxidation-reduction reaction by electron balance method
Cu + HNO3 → Cu(NO3)2 + NO2 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
7. To equalize the oxidation-reduction reaction by electron balance method
Cl2 + KOH → KCl + KClO3 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
8. To equalize the oxidation-reduction reaction by electron balance method
KNO2 + K2Cr2O7 + H2SO4 → KNO3 + Cr2(SO4)3 + K2SO4 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
9. To equalize the oxidation-reduction reaction by electron balance method
H2C2O4 + KMnO4 + H2SO4 → K2SO4 + MnSO4 + CO2 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
10.To equalize the oxidation-reduction reaction by electron balance method
Br2 + Na2S + H2O → HBr + Na2SO3
Determine the degree of oxidation of elements. Write the oxidant and reductant.
11.To equalize the oxidation-reduction reaction by electron balance method
K2Cr2O7 + + KI + H2SO4 → Cr2(SO4)3 + K2SO4 + I2 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
12.To equalize the oxidation-reduction reaction by electron balance method
HNO3 + HCl → Cl2 + NO + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
13.To equalize the oxidation-reduction reaction by electron balance method
S + HNO3(con.) → H2SO4 + NO2 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
14.To equalize the oxidation-reduction reaction by electron balance method
Ag + HNO3(diluted.) → AgNO3 + NO + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
15.To equalize the oxidation-reduction reaction by electron balance method
Ca3(PO4)2 + C + SiO2 → CaSiO3 + P + CO
Determine the degree of oxidation of elements. Write the oxidant and reductant.
16.To equalize the oxidation-reduction reaction by electron balance method
P + KClO3 → KCl + P2O5
Determine the degree of oxidation of elements. Write the oxidant and reductant.
17.To equalize the oxidation-reduction reaction by electron balance method
S + H2SO4 → SO2 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
18.To equalize the oxidation-reduction reaction by electron balance method
KBr + H2SO4 → Br2 + SO2 + K2SO4 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
19.To equalize the oxidation-reduction reaction by electron balance method
8 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
C + H2SO4 → CO2 + SO2 + H2O
Determine the degree of oxidation of elements. Write the oxidant and reductant.
20.To equalize the oxidation-reduction reaction by electron balance method
KMnO4 + HCl → MnCl2 + H2O +Cl2 + KCl . Determine the degree of oxidation of
elements. Write the oxidant and reductant.
Calculations based on the law of the constancy of substance composition
1. The substance consists of 40% Са, 12% С, 48% О. Write the chemical formula of
this substance.
2. Calculate the mass fractions of chemical elements in sulfuric acid, and write them in
percentage.
3. Calculate the mass fractions of chemical elements in copper sulfate (II) and write
them in percentage.
4. Calculate the mass fractions of chemical elements in iron oxide (III) and write them
in percentage.
5. How many moles of oxygen need to complete combustion of 120 g of carbon?
6. Calculate the mass of aluminum hydroxide, which contains 9,03·1023 atoms of
oxygen.
7. In the mixture, which consists of 0.2 mol of potassium chloride and 0.3 mole of
magnesium chloride to calculate the mass fraction (%) of chlorine?
8. Oxide chloride element has formula E2О3 the mass fraction of oxygen which is
equal to 46.07%. Calculated molecular mass of chloride element.
9. It is known that the dissolution of 4 g of oxide needed 25 g of 29.2% solution of
HCl. Write the formula of bivalent oxide element.
The solutions (mass fraction, molar concentration)
1. By mixing 100 g of 5% solution of 300 g of 15% solution. Find the mass fraction of
salt in the solution.
2. How many substances needed to preparation of 1400 g of 7% solution of sulfuric
acid?
3. 4.6 g of sodium react with 200 ml of water. Calculate the mass fraction of sodium
hydroxide in this solution.
4. To 150 g of 20% solution of potassium nitrate add 50 g of water. Calculate the
mass fraction of potassium nitrate in this solution.
5. To 240g of 15% solution of potassium sulfate add 60 g of water. Calculate the mass
fraction of potassium nitrate in this solution.
6. Calculate the mass of 20% solution of sodium carbonate, which is formed from 0.1
moles of carbon dioxide (IV).
7. To 300 g of 18% phosphoric acid solution added 300 g of water. Calculate the mass
fraction of phosphoric acid in this solution.
9 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
8. Calculate the mass of calcium chloride which is necessary to add to 240 g of 10%
calcium chloride solution and produce its 25% solution.
9. Calculate the mass of crystallohydrate BaCl2·2H2O, which is necessary to prepare
200 g of 5.2% solution of barium chloride.
10. Calculate the mass of 20% potassium hydroxide solution, which should be
dissolved 0.5 mol of KOH to get a 40% solution.
11.In 2 liters of water dissolves 5.6 liters of hydrogen sulfide. Calculate the mass
fraction of hydrogen sulfide in the resulting solution.
12.Calculate the mass of potassium phosphate and water, which must be taken to
prepare 250 g of solution with a salt mass fraction of 8%
13. 40 g of salt dissolved 200 mL of water. Determine the mass fraction of salt in the
resulting solution.
14. 6.3 g of nitric acid contained in 250 ml. calculate the molar concentration of the
solution.
15. What volume of hydrogen chloride in liters (STP) is need to prepare 200 ml of
12.5 M hydrochloric acid solution?
16.Calculate the mass of sodium sulfate contained in 200 ml of 0.25 M solution.
17.Calculate the mass of sulfuric acid, which is contained in 500 ml of 0.2 M solution.
18.If the mass fraction of sulfuric acid in this solution is 0.245, calculate the molar
concentration of sulfuric acid. The density is 1 g / ml.
19.In 200 ml of solution containing 11.2 g of potassium hydroxide. Calculate the
molar concentration of the solution.
20.Calculate the mass of potassium chloride which is needed to prepare 300 ml of salt
solution with the molar concentration of 0.15 mol / l.
Calculations on the equations reaction
1. 130 g of zinc powder was mixed with 100 g of sulfur. Calculate the numbers of
moles of zinc sulfide are formed.
2. As a result of electrolysis obtained 254 g of iron chloride (III). Calculate mass of
iron.
3. To neutralize the acetic acid has been used 4.2 g of sodium bicarbonate. Calculate
mass of acetic acid in solution.
4. 5.6 g of calcium oxide processed by 0.6 mol of nitric acid. Calculate the mass of
produced salt, if the total result was an 80%.
5. What mass of aluminum, you must take to obtain 26 g of chromium oxide
chromium (III) by alumino-thermic method, if the total result is 80%.
6. If the reaction released of nitrogen oxide (II) counts the number of substances of
nitric acid, which is necessary for interaction with 3 moles of copper.
7. Calculate the mass of 5% sodium hydroxide solution which is necessary to
neutralize 20 grams of 12.6% solution of nitric acid.
10 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
8. As a result of interaction 48g of iron oxide with carbon monoxide got 25,2 g of
metal. Calculated actual output of metal.
9. Calcium oxide which has mass of 42 kg got of limestone mass of 125 kg, containing
20% impurities. Calculate output of calcium oxide (in %).
10.A mixture of oxides of copper (II) and potassium mass of 200 g reacted with 36 g of
water. Calculate the mass fraction of oxide of copper (II) in the mixture.
11.To neutralize of 0.5 mol acetic acid is needed 10% sodium hydroxide solution.
Calculated mass of 10% sodium hydroxide solution.
12.The result of interaction of 8 g of hydrogen and 10 g of oxygen is formed water.
Calculate the mass of this water.
13.Calculate the mass of calcium, which displaces the water of 2 g of hydrogen.
14.To calculate mass of aluminum which is necessary to get 52 g of chrome from
chrome oxide(III).
15.To calculate mass of the hydrogen which is necessary for reduction of 2 mol of
copper oxide (II)?
16. As a result of combustion of 2.24 liters of carbon monoxide in 4.48 liters of oxygen
gas is formed. Calculated the volume of this gas (n.u.)?
17.The combustion of sulfur with mass of 6.4 g is formed sulfur oxide (IV). Calculate
the volume (STP) of sulfur oxides (IV).
18.Calculate the mass of hydrogen, which is released during the interaction of 4 moles
of aluminum with hydrochloric acid.
19.Calculate the volume of ammonia (STP), which is reacting with nitric acid and to
give 80 g of salt.
20.The volume of carbon dioxide (NU) is 2.24 liters. Calculate the number of
molecules.
21.Gas with a mass of 12.5 g of NU has a volume of 10 liters. Calculate the molar mass
of gas
22.The decomposition of 200 g of calcium carbonate is formed carbon dioxide.
Calculate the volume of carbon dioxide (NU).
23. For synthesis of ammonia 22.4 liters (STP) nitrogen is needed. Calculated the
volume of nitrogen
24. The result of oxidation of 3 moles of sulfur oxide (IV) is formed sulfur oxide (IV).
Calculate the volume (STP) of sulfur oxide (VI).
25. For the dissolution of 7.8 g of aluminum hydroxide needed a 10% solution of
sodium
hydroxide.
Calculated the mass of 10% solution of sodium hydroxide
26. Calculate quantity of substance oxygen which is necessary to interact with 11.2
liters (STP), sulfur oxide (IV).
27.Calculate the volume of chlorine (STP) which is used for the full release of iodine
from a solution containing 33.2 g of potassium iodide.
11 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
28.The interaction of 128 g of calcium hydroxide and 107 g of ammonium chloride is
released ammonia. Calculate volume of ammonia (NU)
29.The interaction of iron and 56 g 16 g of sulfur is formed iron sulfide (II). Calculate
the mass of iron sulfide (II)
30.Calculate the volume of hydrogen (STP) which is obtaining of 180 g of water.
31.The decomposition of 6.4 of g ammonium nitrite nitrogen is formed. Calculate the
volume (STP) of nitrogen
32.The result of calcinations of 2.5 kg of technical calcium carbonate is formed of 448
L (STP) carbon dioxide. Calculate the mass fraction of calcium carbonate.
33.Calculate the volume of the substance of phosphorus oxide (V), which is formed
during the combustion of 1 mole of phosphorus in 44.8 liters (STP) of oxygen.
34. On the marble mass of 40 grams take effect surplus of hydrochloric acid. Calculate
the volume of the evolved gas (STP).
35.Calculate the volume of hydrogen chloride, which is formed by the interaction of 8
liters of chlorine (NU) with 0.5 g of hydrogen.
36.Calculate the mass of hydrogen chloride, which can be obtained from 40 liters of
chlorine (NU).
37.Calculate the volume of hydrogen sulfide (NU) which is formed of the interaction of
176 g of iron sulfide (II) with 146 g of hydrogen chloride.
38.To
100
g
of
74.5%
of
potassium
chloride
solution
added 200 g of 8.5% of silver nitrate solution. Calculate the mass of the precipitate
which is formed in this reaction.
39.What
is
the
quantity
of
substance
of
potassium
hydroxide
is necessary to neutralize 68 ml of 24% solution of HCl (ρ = 1, 12 g / ml).
Electrolytic dissociation
1. Write the equation of the electrolytic dissociation of the next substances: a)
hydrochloric acid, b) calcium hydroxide (step), c) sodium phosphate.
2. Write the equation of the electrolytic dissociation of the next substances
a) Sulfuric acid (step), b) sodium hydroxide c) nitrate, aluminum.
3. Write the equation of the electrolytic dissociation of the next substances
A) Phosphoric acid (step), b) lithium hydroxide, c) sodium carbonate.
4. Write the equation of the electrolytic dissociation of the next substances
a) Phosphoric acid (step), b) lithium hydroxide, c) sodium carbonate.
5. Write the equation of the electrolytic dissociation of the next substances
a) Hydrogen sulfide (step), b) barium hydroxide, c) lead acetate.
Calculations on chemical thermodynamics and kinetics
1. Calculate the quantity of heat released by combustion of 28 liters (STP) of
acetylene. Thermochemical equation for the reaction: 5O2 → 2S2N2 + 4SO2 +
2H2O + 2600 kJ.
12 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
2. The interaction of 5.6 liters (STP chlorine) with hydrogen released 46 kJ of heat.
Calculate the heat of formation of 1 mole of hydrogen chloride (kJ / mol).
3. The result of combustion of 1 mole of methane released 880 kJ of heat. Calculate
the volume of natural gas (STP) which containing 80% of methane which necessary
to produce 2200 kJ of heat.
4. Calculate the quantity of heat which is released of combustion of 0.5 mol
cycloalkanes with the density of hydrogen, equal to 35. The thermal effect of
combustion is 6556 kJ cycloalkanes.
5. You can see this reaction: CH4 + 2O2 → CO2 + 2H2O + 800 kJ; H2 + I2 → 2HI 80 kJ. Calculate the mass of iodohydrogen, which can get when using the heat of
combustion of 3.2 g of methane.
6. Calculate the quantity of heat released of the oxidation of 32 g of technical copper,
containing 20% impurities. Thermo chemical equation: 4Cu + O2 → 2Cu2O +342
kJ.
7. Calculate how to change the speed of the reaction if the temperature is lowered from
10 to 0 °. The temperature coefficient is 3.
8. Calculate how to change the speed of the reaction if the temperature is lowered from
60 to 30 ° C. The temperature coefficient is equal to 3.
9. Calculate how to change the rate reaction if the temperature increasing from 10 to
50oC. The temperature coefficient is 2.
10.Calculate how to change the rate reaction if the temperatures higher by 40 degrees.
The temperature coefficient is 2.
11.The rate of reaction at 20 ° C is equal to 2 mol / (L • s). Calculate the rate of
reaction at 80оС, if the temperature coefficient of the rate reaction is 3.
12.Calculate the average velocity of the reaction A + B → 2C, if the initial
concentration of A was 0.44 mol / l and 10 seconds was equal to 0.22 mol / l.
13.Calculate the average rate of reaction of substance A, if the 10 seconds, the
concentration of A changed from 4.2 mol / L to 2.2 mol / l.
14.Calculate how to change the rate of chemical reaction 2NO + O2 → 2NO2 if
concentration of nitric oxide (II) increasing in half.
15.The kinetic equation for the reaction is w = k • [A] 2 • [B]. If the concentration of A
increased threefold how to change the rate of reaction.
Le Chatelier's principle.
1. You can see this reaction 2SO2 (g) + O2 (g) ↔ 2SO3 (g) + 284.2 kJ. Using Le
Chatelier's principle to explain how displaced the chemical equilibrium in the
following actions: a) an increase in pressure in the system, and b) reducing the
temperature, c) an increase in oxygen concentration.
2. You can see this reaction 2SO2 (g) + O2 (g) ↔ 2SO3 (g) + 284.2 kJ. Using Le
Chatelier's principle to explain how displaced the chemical equilibrium in the
13 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
following actions: a) an increase in pressure in the system, b) increase in
temperature, c) reducing the concentration of carbon dioxide.
3. You can see this reaction 2SO2 (g) + O2 (g) ↔ 2SO3 (g) + 284.2 kJ. Using Le
Chatelier's principle to explain how displaced the chemical equilibrium in the
following actions: a) increase in pressure in the system, b) increase in temperature,
c) add to a catalyst.
4. You can see this reaction 2SO2 (g) + O2 (g) ↔ 2SO3 (g) + 284.2 kJ. Using Le
Chatelier's principle to explain how displaced the chemical equilibrium in the
following actions: a) an increase in pressure in the system, and b) decreasing the
temperature, c) reduction of ammonia concentration.
5. You can see this reaction 2SO2 (g) + O2 (g) ↔ 2SO3 (g) + 284.2 kJ. Using Le
Chatelier's principle to explain how displaced the chemical equilibrium in the
following actions: a) reducing the pressure in the system, b) increase in temperature,
c) add to a catalyst.
Electrolysis of solution and melt.
1. Write the scheme of electrolysis of an water solution of copper sulphate
2. Write the scheme of electrolysis of water solution of potassium sulfate.
3. Write the scheme of electrolysis of water solution sodium chloride.
4. Write the scheme of electrolysis of molten potassium chloride.
5. Write the scheme of electrolysis of molten sodium sulfate.
6. In the electrolysis of 58.5 g of sodium chloride in water solution obtained at the
anode gas, which displaces bromine from potassium bromide. Calculate the volume
of substance displaced bromine.
7. In the electrolysis water solution of silver nitrate isolate of 5,6 liter of gas.
Calculated the mass of metal which is formed on the cathode.
8. In the electrolysis of water solution of potassium chloride is formed of 112 kg of
potassium hydroxide. Calculate the volume of gas (STP) spun off at the electrodes.
9. Calculated the volume of oxygen (n.u) which is outputting of electrolysis of 4 mole
of water.
10. In electrolysis of solution of copper chloride (II) the mass of cathode increasing on
8 g. calculated the mass and volume of gas (n.u) outputting on electrolysis.
Organic chemistry
1. You can see the substance: acetylene, butane, butene-1, butene-1, cyclohexene, 2,2,3-trimetilbutan,
butadiene. Choose between them two pairs of isomers.
2. You can see the substance: cyclobutane, acetylene, heptane, butene-1, butyne-1, cyclohexane, and
butadiene. Choose between them two pairs of homologues
3. Which of the next substances are homologues: С3Н7ОН, НСООН, СН3ОН, С2Н4, С6Н10, С7Н14.
Which classes of organic compounds is belong.
14 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
4. Which of the next substances are isomers: С2Н5ОН, СН3СООН, СН3ОСН3, С2Н4, С6Н10, С7Н14.
Which classes of organic compounds is belong.
5. Write the structural formula of 2,2,5,5- tetrametilhexsan. Write the formula its isomers which are
having as substituents in the main chain only ethyl radicals.
6. Write structural formulas of isomeric acetylenic hydrocarbons С7Н12 of the main chain consisting of
five carbon atoms. Call them on the international nomenclature.
7. Write the formula of the next substance: 2-methylbutanal, 3-metilbutanol-1, 2, 3-diamino-3methylpentane, 2-amino-3-metilbutanyc acid. Which classes of organic compounds they are belong?
8. Write the formula of the next substance: 2,3,3- threemethylpentanic acid, 2-methylpropane-1 ,2metilpropanol-1, butanol-2
9. Write the formula of the next substances: 2-methyl-butene-1; hexyn-2, 1,2,3 - hexadiene-1, 3,
methylcyclobutan. Are these compounds are homologues or isomers.
10. Write the structural formulas of substances by their names: Pentin-1, 3,4-dimethylgexsanic acid, 3methylbutanal, 2-methylpropanol-2. Which classes of organic compounds they belong?
11. Write the structural formulas of substances by their names: 1-propanol, propanol-1, 2, propanol-1, 2,3.
Are these compounds is homologues or isomers?
12. Write the general molecular formula of the homologous series of phenols. Write the structural formula
of the series that contains two hydroxyl groups in a molecule.
13. Make the structural formulas for all monoatomic alcohols which the molecular formula of С5Н11ОН.
Call them on the international nomenclature.
14. Write the potential formulas isomers of hexene. Call them on the international nomenclature.
15. Write the potential formulas of hexane isomers. Call them on the international nomenclature
16. Write the potential formulas of hexanoic acid isomers. Call them according to international
nomenclature
17. Write the potential formulas of aminobutyric acid isomers. Call them according to international
nomenclature.
18. Write the cis, trans isomers for the next compounds: butendiovic acid, 2-butenal, oleic acid.
19. What the chemical reactions can be purified propane from the impurity propene? To confirm the
corresponding reactions
20. How to chemically can be identifying butyn-2 from its mixture with butyne-1? To confirm the
corresponding reactions.
21. It is known that the oxidation of potassium permanganate is formed benzenethreecarbon acid,
determine the structure of the aromatic hydrocarbon composition С9Н12. Write the reaction.
22. Determine the structure of the compound of С4Н8О, if you know that when it forms catalytic
reduction of 2-butanol.
23. The results of under the action of bromine water on anthranilic (2-aminobenzoic) acid are mixture of
mono-and dibrominderivatives. Write structural formulas of each obtained isomers.
24. Write the scheme of obtaining 3-nitrobenzoic acid from ethylbenzene in two stages. Indicate
conditions of reaction
25. Write methods of obtaining 1,4-dibrombuten and 1,2,3,4-tetrabrombutana from butadiene-1, 3.
26. Make the next transformations:
Photosynthesis
ferment
О2, cat
СО2+ Н2О → Х1 → Х2
27. Make the next transformations:
Photosynthesis ferment
→
Сl2, light
Х3
→
Х4
О2, cat С2Н5ОН, Н+
СО2+ Н2О → Х1 → Х2 →
28. Make the next transformations:
Х3 → Х4
15 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
О2, cat
Photosynthesis ferment
NaОН
СО2+ Н2О → Х1 → Х2 → Х3 →
29. Make the next transformations:
Сl2, свет
NaОН, Н2О
[О]
Аg2O, t
С2Н6 → Х1 → Х2 → Х3 →
30. Make the next transformations:
Сl2, свет
NaОН, Н2О
Х4
Х4
СН3СООН, Н+
С3Н8 → Х1 → Х2 →
Х3
31. Make the next transformations:
НВr
NaОН, Н2О
С2Н5ОН, Н+
С2Н4 →
Х1 → Х2 →
Х3
32. Make the next transformations:
Н2О, Н+
[О]
[О]
NaОН
С2Н4 → Х1 → Х2 → Х3 → Х4
33. Make the next transformations:
Н2, Pt
Н2О, Н+
[О]
С2Н2 → Х1 → Х2 → Х3
Make the next transformations:
Н2О
С2Н2
[О]
→ Х1
NaОН
→ Х2 →
Х3
Нg2+, Н+
34. Make the next transformations:
Н2О
НСl
polymerization
СаС2 → Х1 → Х2 →
Х3
35. Make the next transformations:
Н 2О
СаС2 →
Н2О
[О]
СН3ОН, Н+
Х1 → Х2 →
Х3 →
Х4
Нg2+, Н+
36. Make the next transformations:
Н2О
Н2О
СаС2 →
[О]
Х1 → Х2 →
СН3ОН, Н+
Х3 →
Х4
Нg2+, Н+
37. Make the next transformations:
Н2О
С2Н2
Н2, Рt
→
Х1
→
Na
Х2
→ Х3
Нg2+, Н+
38. Make the next transformations::
acetylene → benzene → cyclohexane → hexane
39. Make the next transformations:
methane → acetylene → benzene → nitrobenzene.
40. Make the next transformations:
absorbent carbon, t НNО3, Н2SO4
6[Н]
С2Н2
→
Х1 →
Х2 →
41. Make the next transformations:
НNО3, Н2SO4
6[Н]
3Вr2
benzene → Х1
→ Х2 →
42. Make the next transformations:
[О]
[О]
Х3
Х3
Сl2, light
С3Н7ОН → Х1 → Х2 → Х3
43. Make the next transformations:
16 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
Сu(OH)2,t
С2Н5ОН, Н+
Н2С=О → Х1 → Х2 →
44. Make the next transformations:
Н2SO4(к)
С2Н5ОН
→
Вr2
Х1
Н2О, Н+
NaОН
Х3
КОН, alcohol
→ Х2
→
→
Х4
Н2О
Х3 →
Х4
Нg2+, Н+
-2НВr
45. Make the next transformations:
Аg2O, t
Сl2, свет
NH3
СН3СН=О → Х1 → Х2
→
46. Make the next transformations:
Н2О
С2Н2
Н2,Рt
→
Х1
Х3
С2Н5ОН,Н+
→ Х2
→
Х3
Нg2+, Н+
47. Make the next transformations:
Сl2, light
С2Н6
NaОН, Н2О
→ Х1
→
Н2SO4(c)
Х2 →
[О]
Х3 → Х4
КMnO4, H2O
48. Make the next transformations:
Н2О
С2Н2
→
Н2,Рt
Н2SO4(к)
Х1 → Х2 →
Нg2+, Н+
[О]
Х3 → Х4
КMnO4, H2O
49. Make the next transformations:
Н2О, Н+
СН3-СOО-СН3 →
[О]
[О]
C2Н5ОН, Н+
Х1 → Х2 → Х3 → Х4
-СН3COOH
50. Make the next transformations:
methane → acetylene → benzene → nitrobenzene.
51. Make the next transformations:
methane → acetylene → benzene → chlorobenzene
52. Write the reaction of obtaining: butane from ethane, butane from cyclobutane.
еthane → chloroethane → ethylene → 1,2-dichloroethane → acetylene
53. Write the reaction of obtaining: benzene from hexane, benzene from acetylene.
еthаne → chloroethane → ethylene → ethanol → butadiene-1,3
54. Write the reaction of obtaining propanol from propane-1, propanol-2- from propanol 1.
acythelen → ethylene → chloroethane → cyclobutane
55. Make up the reactions of formation of butane from ethane; cyclobutane from butane
56. Make up the reactions of formation of benzene from hexane; benzene from acetylene
57. Make up the reactions of formation of propanol-1 from propane; propanol-2 from propanol-2 from
propanol-1
58. Write the reaction of obtaining acetic acid: from methane from calcium carbonate.
59. To compose the chain of reactions to produce ethyl acetate from ethane. Write the corresponding
reactions.
60. To compose the chain of reactions to produce ethyl ester of benzoic acid from benzene. Write the
corresponding reactions.
61. Write the reaction of obtaining of 3-aminobenzoic acid from benzene
62. How to get acetone (propanone) from 1-propanol? Write the necessary equation for the reaction.
63. How can carry out of reaction of sodium acetate, → acetic acid → chloroacetic acid? Write the
reactions
64. How can carry out of reaction of: ethyl formate → ethanol → ethyl acetate? Write the reactions
17 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
65. To compose the equation of etherification between substances: acetic acid and 3-metilbutanol-1,
butyric acid, and propanol-1. Name the reaction products
66. To compose the equation of etherification between substances: butyric acid and butanol-2, acetic acid
and ethanol. Name the reaction products.
67. To compose the equation of etherification between substances: муравьиной кислотой и 2-propanol,
acetic acid, and propanol-1. Name the reaction products.
68. Write the reactions of obtaining ethyl formate, pentilatsetata and methyl ester of nitric acid
69. Write the reactions of obtaining ethyl acetate, methyl formate and the methyl ester of sulfuric acid.
70. Write the reactions of obtaining methyl acetate, propilformiata and methyl ester of phosphoric acid.
71. To compose the reactions which can get from phenol: 2,4,6 trinitrophenol, 2,4,6-tribromfenol
72. In order to increasing acidity arrange the following substances: phenol, glycerin, methanol. Write the
equations of chemical reactions, confirming the correctness of the chosen sequence.
73. Write the formula of fat which name is threelenoiloglycerate. Determine the consistency of fat.
74. Write the formula of fat which name is tripalmitoilglitserid. Determine the consistency of fat.
75. Write the products of saponification of fats which name is tristearoilglycerate. Determine the
consistency of fat.
76. Write the hydrolysis products of fat which name is tripalmitoilglycerate.
77. Write the reaction of hydrogenation of fat by transforming liquid into solid fats.
78. Write the reaction of obtaining fat tristearin from triolein. How is called this reaction if has changed
and the resulting consistency of fat.
79. Write the formula of a triglyceride, which consists of stearic, palmitic and oleic acid. Determine the
consistency of fat.
80. Write the formula of a triglyceride, which consists of two molecules of linoleic acid and one molecule
of stearic acid. Determine the consistency of fat.
81. Write the formula of a triglyceride, which consists of two molecules of palmitic and one molecule of
stearic acid. Determine the consistency of fat..
82. Write the formula of a triglyceride, which consists of two molecules of stearic acid and one molecule
of palmitic acid. Determine the consistency of fat.
83. Write the formula of a triglyceride, which consists of two molecules of palmitic and one molecule of
linoleic acid. Determine the consistency of fat.
84. Give the name of the next fats. Determine the consistency of the fat.
CH2 - O - CO - C17H31
|
CH - O - CO - C17H35
|
CH2 - O - CO - C17H35
CH2 - O - CO - C17H33
|
CH - O - CO - C17H35
|
CH - O - CO - C17H33
85. Give the name of the next fats. Determine the consistency of the fat.
CH2 - O - CO - C15H31
|
CH - O - CO - C15H31
|
CH2 - O - CO - C17H35
CH2 - O - CO - C17H33
|
CH - O - CO - C17H31
|
CH - O - CO - C17H33
86. Give the name of the next fats. Determine the consistency of the fat.
18 page from 19
С.Ж.АСФЕНДИЯРОВ АТЫНДАҒЫ
ҚАЗАҚ ҰЛТТЫҚ МЕДИЦИНА УНИВЕРСИТЕТІ
КАЗАХСКИЙ НАЦИОНАЛЬНЫЙ МЕДИЦИНСКИЙ
УНИВЕРСИТЕТ ИМЕНИ С.Д.АСФЕНДИЯРОВА
DEPARTMENT OF BIOLOGICAL CHEMISTRY
QUESTIONS FOR INTERVIEW IN CHEMISTRY FOR ENTRANS IN KazNMU
CH2 - O - CO - C17H33
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CH - O - CO - C15H31
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CH2 - O - CO - C15H31
CH2 - O - CO - C17H31
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CH - O - CO - C17H31
|
CH - O - CO - C15H31
87. Write the products reaction of hydrolysis of sucrose. Call them.
88. Write the products reaction of hydrolysis of maltose. Call them
89. Write the products of complete hydrolysis of starch. What kind of reaction is used to determine the
starch?
90. Write the products reaction of hydrolysis of cellulose. Call them
91. Write the next transformation:
Starch → glucose → ethanol → carbon oxide (IV)
92. Write the next transformation:
Sucrose → glucose → ethanol → carbon oxide (IV)
93. Write the reactions of formation ester of glycerol and three molecules of acid. What have this fat
physical state?
94. Write the formula of amino acids by name: aminoetanic, 2-aminopropanic acid. Write the reactions of
these acids with potassium hydroxide and methanol.
95. Write down dipeptide which consist of residues aminoetanic, 2-aminopropanic acid
96. Write down dipeptides which consist of residues 2-aminopropanic и aminoetic acid.
97. Finish the equation of the next reactions and name the reaction products:
a) а) С3Н6 + Н2О, Н+ → ?
b) С2Н2 + Cl2→?
c) C2H6 + HNO3 (diluted) → ?
d) С3Н8 + Br2→ ?
98. Finish the equation of the next reactions and name the reaction products:
a) СН3СOО-С2Н5 + Н2О, Н+→ ?
b) СН3- СООН+ Сl2, light→ ?
c) СН3ОН + Na → ?
d) NH2 -СН2 – СООН + NaOH→ ?
99. Finish the equation of the next reactions and name the reaction products:
a) 2 CH3Cl + 2 Na→ ?
b) С2Н4 + Br2 → ?
c) C2H6 + Сl2, light→ ?
d) C6Н6 + H2SO4→ ?
100. Закончите уравнения следующих реакций и назовите продукты реакции:
a) 2 C2H5Cl + 2 Na → ?
b) С3Н6 + Br2 → ?
c) C2H6 + Сl2, свет → ?
d) C6Н6–СН3 + НNO3, H2SO4 → ?
Compiled by: Verentsova L.G., Nechepurenko E.V., Almabekova A.A.
Translated by: Elizabeth O. Muhamadieva
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