Choose the single correct answer for each of the following questions: (1 Mark
each).
Q. 1. How many lone pairs are present in CH3-O-CH3
i) 3
ii) 2
iii) 1
iv) 4
Q.2. When any hydrocarbon is added to water, it is:
i) Soluble
ii) Insoluble
iii) Partially soluble
iv) None of these
Q.3. Which of the following is true for element Carbon:
i) Monovalent
ii) Divalent
iii) Trivalent
iv) Tetravalent
Q.4. General formula of Alknaes is:
i) CnH2n-2
ii) CnH2n+2
iii) CnH2n
iv) CnH2n+1
Q.5. General formula of Alkenes is:
i) CnH2n-2
ii) CnH2n+2
iii) CnH2n
iv) CnH2n+1
Q.6. General formula of Alkynes is:
i) CnH2n-2
ii) CnH2n+2
iii) CnH2n
iv) CnH2n+1
Q.7. How many constitutional isomers does molecular formula C5H12 have:
i) 3
ii) 2
iii) 4
iv) 0
Q.8. Isomers are the compounds that must have same
i) Structural formula
ii) Molecular formula
iii) Physical properties
iv) Chemical Properties
Q.9. The isomer of butane is
i) 1-methyl propane
ii) 2-methyl propane
iii) 2-methyl butane
iv) Cyclobutane
Q.10. How many hydrogen atoms are present in a cycloalkane with five carbon
atoms
i) 6
ii) 8
iii) 10
iv) 12
Chapter 11
Q.1. Which of the following molecule shows cis-trans isomerism:
i) 2-butene
ii) 1-butene
iii) I-pentene
iv) 2-methyl butane
Q.2. The molecular formula C6H5CH3 belongs to the following group:
i) Aliphatic hydrocarbons
ii) Saturated hydrocarbons
iii) alkyne
iv) aromatic hydrocarbons
Q.3. Give the correct IUPAC name of CH2=CHCH2CH2CH(CH3)CH2C(CH3)3
i) 5,7,7-trimethyl 1-octene
ii) 2,2,4-trimethyl 7-octene
iii) 7,7 dimethyl, 1-nonene
iv) 5,7,7,7 tetra methyl, 1-heptene
Q.4. The product obtained by hydration of ethene is:
i) Acetaldehyde
ii) Acetic Acid
iii) Methanol
iv) Ethanol
Q.5. The product obtained by hydration of propene is:
i) 1-propanol
ii) 2-propanol
iii) 1-butene
iv) 2-butene
Q.6. Phenol is:
i) An alcohol
ii) An aldehyde
iii) An aliphatic compound
iv) An aromatic compound
Q.7. Stereoisomers have:
i) Same molecular formula but different structural formula
ii) Same molecular and same structural formula
iii) Different molecular formula but same structural formula
iv) Same molecular formula and same properties
Q.8. Chemical name of polymer ‘Teflon’ is:
i) Polyethylene
ii) Polyvinyl Chloride
iii) Polytetrafluoroethylene
iv) Polypropylene
Q.9. Common name of ‘hydroxybenzene’ is:
i) Aniline
ii) Phenol
iii) Toluene
iv) Benzene
Q.10.
What
is
i) 1,2-diethylbenzene
the
IUPAC
name
of
m-diethylbenzene
ii) 1,4-diethylbenzene
iii) 1,3-diethylbenzene
iv) 2,4-diethylbenzene
1. Solubility of ethanol in water is due to:
a) Hydrogen bonds
b) Covalent bonds
c) Ionic bonds
d) Van der Waal forces
2. Dehydration of an alcohol leads to the formation of an………….
a) Alkene
b) Alkane
3. Aldehydes on oxidation produce:
a) Alcohols
b) Ketones
c) Alkyne
d) Aldehyde
c) Carboxylic acids
d) Alkanes
4. Which of the following compounds has the highest boiling point?
a) CH3CH2CH2CH3
c) CH3OCH2CH3
b) CH3CH2CH=CH2
d) CH3CH2CH2OH
5. Which of the following names represents this structure?
a) 4-methyl-3-ethyl-1-cyclohexanone
b) 3-ethyl-4-methylcyclohexanone
c) 3-ethyl-4-methyl-1-cyclohexanone
d) 4-methyl-3-ethylcyclohexanone
6. Select the IUPAC name for: (CH3)2CHCH(OH)CH2C(CH3)3.
a) 2,5,5-trimethyl-3-hexanol
b) 1,1-dimethylisopentanol
c) 1,1,4,4-pentamethylbutanol
d) 2,5-dimethyl-4-hexanol
7. Which of the following is the correct IUPAC name of the structure shown?
a) 4-methylhexanal
b) methylhexanal
c) 3-proylpropanal
d) 3-methylhexanal
8. What is the common name of CH3CH2OCH2CH2CH2CH3?
a) Diethylether
c) Dibutylether
b) Butylethylether
d) Ethylbutylether
9. What is the IUPAC name of the compound shown?
a) 3-ethyl-2-heptanone
b) 3-butyl-2-pentanone
c) 5-ethyl-2-heptanone
d) 3-ethyl-2-hexanone
10. Which of the following names represents this structure?
a) 1-Ethyl-4-methyl-2-pentanone
b) 2-Ethyl-4-methyl-cyclopentanone
c) 1-Methyl-4-ethyl-3-pentanone
d) 1-Methyl-3-thyl-4-pentanone
11. The isomers below are:
a) Identical
b) Constitutional isomers
c) Cis-trans isomers
d) Enantiomers
12. Which of the following has lower boiling point? C
13. Oxidation of secondary alcohol gives :
a) Aldehyde
b) Ketone
c) Acid
d) No reaction
14. A molecule containing an atom which carries four different atoms or
groups attached to it is known as
a) Chiral molecule
c) Achiral molecue
b) Symmetric molecule
d) None of these
15. Which class of alcohol is isopropyl alcohol:
a) Primary
c) Secondary
b) Tertiary
d) Quaternary
16. Which one of the following is a tertiary alcohol?
a) CH3CH2OH
c) CH3OH
b) CH3CH(OH)CH3
d) (CH3) 3COH
17. The number of chirality centers of the structure given below is:
a) 2
b) 3
c) 4
d) 5
18. Which of the following structures is a 3° amide ? a
CH3CH2N(CH3)2
a)
CH3CH2CONHCH3
CH3CH2CON(CH3)2
b)
c)
CH3CH2NHCH3
d)
19. Which of the following structures represents triethylammonium iodide? c
(CH3CH2)2NH2 I
a)
CH3CH2NH3 I
(CH3CH2)3NH I
b)
c)
(CH3CH2)4N I
d)
20. Choose the correct IUPAC name of this compound
CH3
CH3
CH3CHCHCHCH2COOH
Cl
a) 2,4-dimethyl-3-chlorohexanoic acid
acid
c) 3-chloro-2,4-dimethylhexanoic
b) 4-chloro-3,5-dimethylhexanoic acid
d) 3,5-dimethyl-4-chlorohexanoic
acid
21. What is the common name of the following compound?
N
CH2CH3
CH3
a) N-ethyl,N-methyl toluene
b) N-ethyl,N-methyl aniline
c) ethylmethyl aminobenzene
d) ethylmethyl aniline
22. Which of the following structures represents N,N-dimethylacetamide? b
O
CH3 C N(CH3)2
a)
O
O
O
H C N(CH3)2
H3C C
NHCH3
H C
c)
b)
23. Which of the following has the higher boiling point?
a) CH3CH2COOH
b) CH3CH2CH2OCH3
c) CH3COOCH3
d) CH3CH2CH2CH2OH
24. What products are formed when (CH3CH2)2NH is treated with HCl ?
a) (CH3CH2)2NH3+
b) (CH3CH2) NH2
c) (CH3CH2)2NH2+Cld) (CH3CH2)3N
25. The reaction of CH3CH2CO2H and C2H5OH / H2SO4 gives
a) CH3CH2COOH
b) CH3CH2COOCOCH2CH3
c) CH3CH2COOC2H5
d) CH3CH2CONHC2H5
26. Which of the following compounds is more soluble in water?
a) CH3(CH2)4COOH
b) CH3(CH2)5COOH
c) CH3(CH2)6COONa
d) CH3(CH2)6COOH
27. What is the classification of the following amine ?
N CH3
a) Primary amine
b) Tertiary amine
c) secondary amine
d) quaternary amine
NHCH3
d)
28. What are the hydrolysis products of the following ester using H2O/H2SO4?
C6H5CH2COOCH2CH3
+
a) C6H5CH2COOH + C2H5OH
b) C6H5COOH + C2H5OH
H2O
H2SO4
c) C6H5CH2COOCH2CH3 + H2O
d) C6H5CH2COCH3 + CH3OH
29. What products are formed when the following ester is hydrolyzed with
water and NaOH?
CH3CH2CH2COOC2H5 + H2O NaOH
a) CH3 (CH2)2COOC2H5 + H2O
C2H5OH
b) (CH3)2 CHCOOH + C2H5OH
c) CH3CH2CH2COONa +
d) CH3CH2COCH3 + C2H5OH
30. Which of the following has the higher boiling point?
a) CH3CH2CH2CONH2
b) CH3CH2CONHCH3
c) CH3CON(CH3)2
d) CH3CH2CH2CH3
31. What are the products of the following reaction? c
O
CH3CNHCH2CH2CH3 + H2O HCl
a) CH3COOH
+
H2NCH2CH2CH3
c) CH3COOH
b) CH3CONH2
+
CH2CH2CH2OH
d) CH3CONHCH3
+
CH3CH2CH2NH3Cl
+ CH3CH2OH
32. What are the products of the hydrolysis of the following amide?
O
+
C
H2O
NaOH
N(CH3)2
a) C6H5COOH + (CH3)2NH
b) C6H5COOH + CH3NH2
c) C6H5COONa + (CH3)2NH + H2O
d) C6H5CON(CH3)2 + H2O + NaOH
33. Which of the following represents α-isomer of cyclic form of the sugar
shown ?c
H
HOCH2 C
CH2OH
C
C
C
CHO
OH H
H
OH
CH2OH
O
OH
H
H
H
H
OH
OH
CH2OH
H
OH
H
O
OH
OH
H
OH
O
CH2OH
O
OH
H
OH
H
OH
OH OH H
H
H
OH
H
H
OH
OH
H
H
OH
H
OH
H
H
OH
H
H
a)
b)
c)
d)
34. Which of the following monosaccharides represents L-ketopentose? b
CHO
HO
CH2OH
H
CH2OH
CHO
O
H
O
OH
H
OH
HO
H
HO
H
H
OH
H
OH
HO
H
HO
H
H
OH
CH2OH
CH2OH
b)
a)
CH2OH
CH2OH
c)
d)
35. Which of the following cyclic structures represents β-D-fructose? c
CH2OH
CH2OH
O
CH2OH
CH2OH
O
CH2OH
OH
H
OH
OH
OH
OH
a)
CH2OH
OH
OH
H
OH
O
b)
H
OH
CH2OH
CH2OH
O
OH
H
OH
OH
c)
d)
36. What is the product formed when D-glucose is treated with Cu+2 / OH‾ ? b
COOH
CHO
H
H
OH
HO
OH
HO
H
COOH
CHO
HO
H
H
H
HO
H
H
OH
OH
H
OH
H
OH
HO
H
HO
H
H
OH
H
OH
HO
H
HO
H
CH2OH
CH2OH
a)
CH2OH
CH2OH
d)
c)
b)
37. What is the product formed when a D-aldopentose is treated with H2 / Pd ?
c
COOH
CHO
HO
HO
H
CH3
CH2OH
H
HO
H
HO
H
H
OH
H
OH
H
OH
H
OH
H
OH
H
OH
H
OH
H
OH
CH2OH
CH2OH
a)
CH2OH
c)
b)
CH2OH
d)
38. Starch consists mainly from?
a) Amylose and amylopectine
b) Glucose and glycogen
c) amylose and glycogen
d) glucose and galactose
39. The structure below is corresponding to a disaccharide in the form of :
H
H
O
4
1
H
O
O
4
1
OH
a) α - glycoside
b) β - glycoside
OH
H
c) δ- glycoside
d) non of the above
40. The hydrolysis of maltose gives two units of :
a) α-D-galactose
b) β-D-glucose
c) α-D-glucose
d) β-D-galactose
41. All carbohydrates contain one or more chirality centers except:
a) Dihydroxy acetone
b) Glucose
c) glycerladehyde
d) fructose
42. The amino acid given below can be classified as :
H
H3N
C
COO
CH2CH2CONH2
a) Neutral
b) Basic
c) Acidic
d) Zwitterion
43. The pH at which the amino acid exist primarily in its neutral form is called:
a) Hydrogen bond
b) Melting point
c) isoelectric point
d) boiling point
44. The net charge of the zwitterion of an amino acid is :
a) -1
b) -2
c) zero
d) +1
45. Which of the following structures represents glycine in a solution of pH =
2? b
H3 N
C
COO
H3 N
C
H
H
a)
b)
H
H
H
H
COOH
H2 N
C
COO
H
c)
46. The C-terminal of the following peptide chain is ?
Arg-His-Ala-Asp
a) Arginine
c) histidine
H2 N
C
H
d)
COOH
b) Aspartic acid
d) alanine
47. Three amino acids joined together by two peptide bond, called………………
a) Tripeptide
b) Polypeptide
c) dipeptide
d) tetrapeptide
48. Which form is predominates at pH (11) for neutral amino acid ?
a) Zwitterion
c) anionic form (-1)
b) Cationic form(+1)
d) all of them
49. What is the name of a tripeptide has N-terminal amino acid of tyrosine ,
leucine and C-terminal amino acid alanine?
a) leucyltyrosylalanine
b) leucylalanyltyrosine
c) alanylleucyltyrosine
d) tyrosylalanylleucine
50. All amino acids have a chirality center except:
a) Alanine
b) Glycine
c) histidine
d) aspartic acid