MCQs Question Bank (Competition Preparation) - Hydrocarbons Class 11 Notes | EduRev

Chemistry Class 11

Class 11 : MCQs Question Bank (Competition Preparation) - Hydrocarbons Class 11 Notes | EduRev

 Page 1


LEARNERS HABITAT
1] (CH
3
)
3
 CMgCl on reaction with D
2
O produces:
a) (CH
3
)
3
CD b) (CH
3
)
3
 COD c) (CD
3
)
3
 CD d) (CD
3
)
3
 COD
2] Which has maximum b.p. and m.p. out of :
 I  II  III 
a) I in both case b) I, II c) I, III d) II, I
3] C
5
H
11
Cl by Wurtz reaction forms 2, 2, 5, 5-tetramethyl hexane as the main product.
Hence, C
5
 H
11
 Cl is:
a) 2, 2-dimethyl-1-chloropropane b) 2-methyl-l-chlorobutane
c) both are true d) none is true
4]  A, A is: 
a) b) c) d) CH
3
COCH
3 
5] CH
3
CH
2 
Cl + LiAlH
4
 ? ? ? CH
3
CH
3
. This reduction process follows:
a) S
N 
1 mechanism  b) S
N
 2 mechanism  c) E1 mechanism  d) E2 mechanism
6] The complete combustion of CH
4
 gives:
a) CO + H
2
b) CO + N
2
c) CO
2 
+ H
2
O d) CO + N
2
O
7] Which of the following gives methane [CH
4
] on hydrolysis?
a) Fe
3
O
4
b) Al
2
 O
3
c) CaC
2
d)Al
4
C
3
8] The organic reaction product from the reaction of methyl magnesium bromide and
ethyl alcohol is
a) methane b) ethane c) propane d) butane
9] Propane is obtained from propene, by which of the following method?
a) Wurtz reaction b) Dehydration
c) Frankland reaction d) Catalytic hydrogenation
10] The product formed by heating sodium propionate with sodalime is:
a) acetone b) propyl amine
c) ethane d) acetaldehyde
CH CH
3
CH
3
CH
3
KMnO
4
CH
3
CH CHCOOH
3
CH
3
CH C=CH
3 2
OH
CH
3
CH C
3   
CH
3
LH Practice Sheet HYDROCARBONS
LEARNERS HABITAT, 97/1, 3rd Floor, Near NCERT Gate No. 01, Adchini, New Delhi. +91-8510800081/82 
www.learnershabitat.ac.in Page 1
Page 2


LEARNERS HABITAT
1] (CH
3
)
3
 CMgCl on reaction with D
2
O produces:
a) (CH
3
)
3
CD b) (CH
3
)
3
 COD c) (CD
3
)
3
 CD d) (CD
3
)
3
 COD
2] Which has maximum b.p. and m.p. out of :
 I  II  III 
a) I in both case b) I, II c) I, III d) II, I
3] C
5
H
11
Cl by Wurtz reaction forms 2, 2, 5, 5-tetramethyl hexane as the main product.
Hence, C
5
 H
11
 Cl is:
a) 2, 2-dimethyl-1-chloropropane b) 2-methyl-l-chlorobutane
c) both are true d) none is true
4]  A, A is: 
a) b) c) d) CH
3
COCH
3 
5] CH
3
CH
2 
Cl + LiAlH
4
 ? ? ? CH
3
CH
3
. This reduction process follows:
a) S
N 
1 mechanism  b) S
N
 2 mechanism  c) E1 mechanism  d) E2 mechanism
6] The complete combustion of CH
4
 gives:
a) CO + H
2
b) CO + N
2
c) CO
2 
+ H
2
O d) CO + N
2
O
7] Which of the following gives methane [CH
4
] on hydrolysis?
a) Fe
3
O
4
b) Al
2
 O
3
c) CaC
2
d)Al
4
C
3
8] The organic reaction product from the reaction of methyl magnesium bromide and
ethyl alcohol is
a) methane b) ethane c) propane d) butane
9] Propane is obtained from propene, by which of the following method?
a) Wurtz reaction b) Dehydration
c) Frankland reaction d) Catalytic hydrogenation
10] The product formed by heating sodium propionate with sodalime is:
a) acetone b) propyl amine
c) ethane d) acetaldehyde
CH CH
3
CH
3
CH
3
KMnO
4
CH
3
CH CHCOOH
3
CH
3
CH C=CH
3 2
OH
CH
3
CH C
3   
CH
3
LH Practice Sheet HYDROCARBONS
LEARNERS HABITAT, 97/1, 3rd Floor, Near NCERT Gate No. 01, Adchini, New Delhi. +91-8510800081/82 
www.learnershabitat.ac.in Page 1
11] Which is antiknock agent?
a) (C
3
H
7
)
4
 Pb b) (C
2
H
5
)
4
 Pb
c) (CH
3
)
4
 Pb d) none of these
12] By oxidation ozonolysis A (C
4
H
8
) changes to CH
3
COOH. Thus A is:
a)   b)
c) CH
3
CH = CHCH
3
d) CH
3
CH
2
CH=CH
2
13] CH
3
CH = CH
2
4
2 2
NaBD
H O /OH
? ? ? ? Product X; X is: 
a) b) c) d) none is correct 
14] B 
2
Lindlar/H
? ? ? ? ? R
 __
C = C
__
R 
3
Na/ NH
? ? ? ? ? A, A and B are geometrical isomers 
(R
__
CH = CH
 __
R):
a) A is cis, B is trams b) A is trans, B is cis
c) A and B both are cis d) A and B both are trans
15]
4 4
NaIO /KMnO
? ? ? ? ? ? Products; products are: 
a) b) 
c) d) none is correct 
16] Which one of the following has the smallest heat of hydrogenation per mol?
a) 1-butene b) trans-2-butene  c) cis-2-butene d) 1, 3-butadiene
17] CH
3
CH = CHCH
3
 + CH
2
N
2
 ? A ; A is:
a)  b) c) both are correct  d) none is correct
18] Alkene(A) + 
4
KMnO
?
? ? ? ? + 
A is: 
a) b) c) d) 
19] 
       I           II III 
Which one is most easily dehydrohalogenated? 
a) I b) II c) III d) All with same ease
CH
3
CHCH D
2
OH
CH
3
CHCH OH
2
D
CH
3
CHCH
3
OD
C=CHCCH
3
CH
3
CH
3
CH
3
CH
3
CCH ,(CH ) CCOOH
3 3 3
O
CH
3
CCH ,(CH ) CCHO
3 3 3
O
CH
3
COH,(CH ) CCOOH
3 3
CH
3
O
CH   CHCH 
3
N
2
CH
3
CH
3
CH   CHCH 
3
CH
3
CH
2
O
Cl Cl Cl
LH Practice Sheet HYDROCARBONS
LEARNERS HABITAT, 97/1, 3rd Floor, Near NCERT Gate No. 01, Adchini, New Delhi. +91-8510800081/82 
www.learnershabitat.ac.in
 
Page 2
Page 3


LEARNERS HABITAT
1] (CH
3
)
3
 CMgCl on reaction with D
2
O produces:
a) (CH
3
)
3
CD b) (CH
3
)
3
 COD c) (CD
3
)
3
 CD d) (CD
3
)
3
 COD
2] Which has maximum b.p. and m.p. out of :
 I  II  III 
a) I in both case b) I, II c) I, III d) II, I
3] C
5
H
11
Cl by Wurtz reaction forms 2, 2, 5, 5-tetramethyl hexane as the main product.
Hence, C
5
 H
11
 Cl is:
a) 2, 2-dimethyl-1-chloropropane b) 2-methyl-l-chlorobutane
c) both are true d) none is true
4]  A, A is: 
a) b) c) d) CH
3
COCH
3 
5] CH
3
CH
2 
Cl + LiAlH
4
 ? ? ? CH
3
CH
3
. This reduction process follows:
a) S
N 
1 mechanism  b) S
N
 2 mechanism  c) E1 mechanism  d) E2 mechanism
6] The complete combustion of CH
4
 gives:
a) CO + H
2
b) CO + N
2
c) CO
2 
+ H
2
O d) CO + N
2
O
7] Which of the following gives methane [CH
4
] on hydrolysis?
a) Fe
3
O
4
b) Al
2
 O
3
c) CaC
2
d)Al
4
C
3
8] The organic reaction product from the reaction of methyl magnesium bromide and
ethyl alcohol is
a) methane b) ethane c) propane d) butane
9] Propane is obtained from propene, by which of the following method?
a) Wurtz reaction b) Dehydration
c) Frankland reaction d) Catalytic hydrogenation
10] The product formed by heating sodium propionate with sodalime is:
a) acetone b) propyl amine
c) ethane d) acetaldehyde
CH CH
3
CH
3
CH
3
KMnO
4
CH
3
CH CHCOOH
3
CH
3
CH C=CH
3 2
OH
CH
3
CH C
3   
CH
3
LH Practice Sheet HYDROCARBONS
LEARNERS HABITAT, 97/1, 3rd Floor, Near NCERT Gate No. 01, Adchini, New Delhi. +91-8510800081/82 
www.learnershabitat.ac.in Page 1
11] Which is antiknock agent?
a) (C
3
H
7
)
4
 Pb b) (C
2
H
5
)
4
 Pb
c) (CH
3
)
4
 Pb d) none of these
12] By oxidation ozonolysis A (C
4
H
8
) changes to CH
3
COOH. Thus A is:
a)   b)
c) CH
3
CH = CHCH
3
d) CH
3
CH
2
CH=CH
2
13] CH
3
CH = CH
2
4
2 2
NaBD
H O /OH
? ? ? ? Product X; X is: 
a) b) c) d) none is correct 
14] B 
2
Lindlar/H
? ? ? ? ? R
 __
C = C
__
R 
3
Na/ NH
? ? ? ? ? A, A and B are geometrical isomers 
(R
__
CH = CH
 __
R):
a) A is cis, B is trams b) A is trans, B is cis
c) A and B both are cis d) A and B both are trans
15]
4 4
NaIO /KMnO
? ? ? ? ? ? Products; products are: 
a) b) 
c) d) none is correct 
16] Which one of the following has the smallest heat of hydrogenation per mol?
a) 1-butene b) trans-2-butene  c) cis-2-butene d) 1, 3-butadiene
17] CH
3
CH = CHCH
3
 + CH
2
N
2
 ? A ; A is:
a)  b) c) both are correct  d) none is correct
18] Alkene(A) + 
4
KMnO
?
? ? ? ? + 
A is: 
a) b) c) d) 
19] 
       I           II III 
Which one is most easily dehydrohalogenated? 
a) I b) II c) III d) All with same ease
CH
3
CHCH D
2
OH
CH
3
CHCH OH
2
D
CH
3
CHCH
3
OD
C=CHCCH
3
CH
3
CH
3
CH
3
CH
3
CCH ,(CH ) CCOOH
3 3 3
O
CH
3
CCH ,(CH ) CCHO
3 3 3
O
CH
3
COH,(CH ) CCOOH
3 3
CH
3
O
CH   CHCH 
3
N
2
CH
3
CH
3
CH   CHCH 
3
CH
3
CH
2
O
Cl Cl Cl
LH Practice Sheet HYDROCARBONS
LEARNERS HABITAT, 97/1, 3rd Floor, Near NCERT Gate No. 01, Adchini, New Delhi. +91-8510800081/82 
www.learnershabitat.ac.in
 
Page 2
20] 
2
H O/H
?
? ? ? ? ? A (predominant), A is: 
a) b) 
c) d) 
21] The alkene R
__
CH=CH
2
 reacts readily with B
2
H
6
 and the product on oxidation with
alkaline hydrogen peroxide produces:
a) R
__
CH
2
___
CHO b) R
__
CH
2
__
CH
2
__
OH
c) d) 
22] In a reaction CH
2
 = CH
2
hypochlorous
acid
? ? ? ? ? ? M 
R
? ? ? M and R are: 
a) CH
3
CH
2
Cl and NaOH b) CH
2
Cl.CH
2
OH and (aq).NaHCO
3
c) CH
3
CH
2
OH and HCl d) and heat
23] Among the following alkenes?
1-butene  cis-2-butene trans-2-butene 
   I         II  III 
the decreasing order of stability is: 
a) II > I > III b) III > II > I c) III > I > II d) I > II > III
24] The compound on reaction with NaIO
4
 in the presence of KMnO
4 
gives: 
a) CH
3
COCH
3
+ CH
3
CHO b) CH
3
CHO + CO
2
c) CH
3
COCH
3
d) CH
3
COCH
3 
+ CH
3
COOH
25] Reaction of HBr with propene in presence of peroxide gives:
a) isopropyl bromide b) 3-bromo propane
c) allyl bromide d) n-propyl bromide
CH=CH CH
3
CH
3
OH
CH
2
CH    CH
3
OH
CH CH
2
CH
3
OH
CH CH    
CH
3
CH CH    HO
R     C O
CH
3
R     CH
OH
CH
2
OH
CH OH
2
CH OH
2
CH
2
CH
2
O
C CH
3
CH
3
CH CH
3
26] Ethylene  reacts with 1% alkaline solution of KMnO
4
 to produce:
a) ethylene glycol
c) acetone
b) formaldehyde
d) acetic acid
LH Practice Sheet HYDROCARBONS
LEARNERS HABITAT, 97/1, 3rd Floor, Near NCERT Gate No. 01, Adchini, New Delhi. +91-8510800081/82 
www.learnershabitat.ac.in
 
Page 3
Page 4


LEARNERS HABITAT
1] (CH
3
)
3
 CMgCl on reaction with D
2
O produces:
a) (CH
3
)
3
CD b) (CH
3
)
3
 COD c) (CD
3
)
3
 CD d) (CD
3
)
3
 COD
2] Which has maximum b.p. and m.p. out of :
 I  II  III 
a) I in both case b) I, II c) I, III d) II, I
3] C
5
H
11
Cl by Wurtz reaction forms 2, 2, 5, 5-tetramethyl hexane as the main product.
Hence, C
5
 H
11
 Cl is:
a) 2, 2-dimethyl-1-chloropropane b) 2-methyl-l-chlorobutane
c) both are true d) none is true
4]  A, A is: 
a) b) c) d) CH
3
COCH
3 
5] CH
3
CH
2 
Cl + LiAlH
4
 ? ? ? CH
3
CH
3
. This reduction process follows:
a) S
N 
1 mechanism  b) S
N
 2 mechanism  c) E1 mechanism  d) E2 mechanism
6] The complete combustion of CH
4
 gives:
a) CO + H
2
b) CO + N
2
c) CO
2 
+ H
2
O d) CO + N
2
O
7] Which of the following gives methane [CH
4
] on hydrolysis?
a) Fe
3
O
4
b) Al
2
 O
3
c) CaC
2
d)Al
4
C
3
8] The organic reaction product from the reaction of methyl magnesium bromide and
ethyl alcohol is
a) methane b) ethane c) propane d) butane
9] Propane is obtained from propene, by which of the following method?
a) Wurtz reaction b) Dehydration
c) Frankland reaction d) Catalytic hydrogenation
10] The product formed by heating sodium propionate with sodalime is:
a) acetone b) propyl amine
c) ethane d) acetaldehyde
CH CH
3
CH
3
CH
3
KMnO
4
CH
3
CH CHCOOH
3
CH
3
CH C=CH
3 2
OH
CH
3
CH C
3   
CH
3
LH Practice Sheet HYDROCARBONS
LEARNERS HABITAT, 97/1, 3rd Floor, Near NCERT Gate No. 01, Adchini, New Delhi. +91-8510800081/82 
www.learnershabitat.ac.in Page 1
11] Which is antiknock agent?
a) (C
3
H
7
)
4
 Pb b) (C
2
H
5
)
4
 Pb
c) (CH
3
)
4
 Pb d) none of these
12] By oxidation ozonolysis A (C
4
H
8
) changes to CH
3
COOH. Thus A is:
a)   b)
c) CH
3
CH = CHCH
3
d) CH
3
CH
2
CH=CH
2
13] CH
3
CH = CH
2
4
2 2
NaBD
H O /OH
? ? ? ? Product X; X is: 
a) b) c) d) none is correct 
14] B 
2
Lindlar/H
? ? ? ? ? R
 __
C = C
__
R 
3
Na/ NH
? ? ? ? ? A, A and B are geometrical isomers 
(R
__
CH = CH
 __
R):
a) A is cis, B is trams b) A is trans, B is cis
c) A and B both are cis d) A and B both are trans
15]
4 4
NaIO /KMnO
? ? ? ? ? ? Products; products are: 
a) b) 
c) d) none is correct 
16] Which one of the following has the smallest heat of hydrogenation per mol?
a) 1-butene b) trans-2-butene  c) cis-2-butene d) 1, 3-butadiene
17] CH
3
CH = CHCH
3
 + CH
2
N
2
 ? A ; A is:
a)  b) c) both are correct  d) none is correct
18] Alkene(A) + 
4
KMnO
?
? ? ? ? + 
A is: 
a) b) c) d) 
19] 
       I           II III 
Which one is most easily dehydrohalogenated? 
a) I b) II c) III d) All with same ease
CH
3
CHCH D
2
OH
CH
3
CHCH OH
2
D
CH
3
CHCH
3
OD
C=CHCCH
3
CH
3
CH
3
CH
3
CH
3
CCH ,(CH ) CCOOH
3 3 3
O
CH
3
CCH ,(CH ) CCHO
3 3 3
O
CH
3
COH,(CH ) CCOOH
3 3
CH
3
O
CH   CHCH 
3
N
2
CH
3
CH
3
CH   CHCH 
3
CH
3
CH
2
O
Cl Cl Cl
LH Practice Sheet HYDROCARBONS
LEARNERS HABITAT, 97/1, 3rd Floor, Near NCERT Gate No. 01, Adchini, New Delhi. +91-8510800081/82 
www.learnershabitat.ac.in
 
Page 2
20] 
2
H O/H
?
? ? ? ? ? A (predominant), A is: 
a) b) 
c) d) 
21] The alkene R
__
CH=CH
2
 reacts readily with B
2
H
6
 and the product on oxidation with
alkaline hydrogen peroxide produces:
a) R
__
CH
2
___
CHO b) R
__
CH
2
__
CH
2
__
OH
c) d) 
22] In a reaction CH
2
 = CH
2
hypochlorous
acid
? ? ? ? ? ? M 
R
? ? ? M and R are: 
a) CH
3
CH
2
Cl and NaOH b) CH
2
Cl.CH
2
OH and (aq).NaHCO
3
c) CH
3
CH
2
OH and HCl d) and heat
23] Among the following alkenes?
1-butene  cis-2-butene trans-2-butene 
   I         II  III 
the decreasing order of stability is: 
a) II > I > III b) III > II > I c) III > I > II d) I > II > III
24] The compound on reaction with NaIO
4
 in the presence of KMnO
4 
gives: 
a) CH
3
COCH
3
+ CH
3
CHO b) CH
3
CHO + CO
2
c) CH
3
COCH
3
d) CH
3
COCH
3 
+ CH
3
COOH
25] Reaction of HBr with propene in presence of peroxide gives:
a) isopropyl bromide b) 3-bromo propane
c) allyl bromide d) n-propyl bromide
CH=CH CH
3
CH
3
OH
CH
2
CH    CH
3
OH
CH CH
2
CH
3
OH
CH CH    
CH
3
CH CH    HO
R     C O
CH
3
R     CH
OH
CH
2
OH
CH OH
2
CH OH
2
CH
2
CH
2
O
C CH
3
CH
3
CH CH
3
26] Ethylene  reacts with 1% alkaline solution of KMnO
4
 to produce:
a) ethylene glycol
c) acetone
b) formaldehyde
d) acetic acid
LH Practice Sheet HYDROCARBONS
LEARNERS HABITAT, 97/1, 3rd Floor, Near NCERT Gate No. 01, Adchini, New Delhi. +91-8510800081/82 
www.learnershabitat.ac.in
 
Page 3
27] In 1, 3-butadiene, the carbon atom is hybridised as:
a) sp b) sp
2
c) sp
3
d) sp
2
 and sp
3
28] An alkene ozonolysis yields two molecules of propanedial. It is:
a) b) 
c) CH
3
CH = CHCH
2
CH = CHCH
3
d) CH
3
CH
2
CH=CHC
2
H
5
29] A mixture of C
2
H
6
, C
2
H
4
 and C
2
H
2
 is passed through ammoniacal AgNO
3
. The gases
which remain unreacted are:
a) C
2
H
2
b) C
2
H
2
 and C
2
H
4
c) C
2
H
6
d) C
2
H
4
 and C
2
H
6
30] The empirical formula of a compound is CH
2
. 1 mole of this compound has a mass of
42g. Its molecular formula is:
a) C
2
H
2
b) CH
2
c) C
3
H
8
d) C
3
H
6
31] Alkaline KMnO
4
 oxidise acetylene to:
a) acetic acid b) ethyl alcohol c) ethylene glycol  d) oxalic acid
32] Iodoform (CHI
3
) reacts with Ag powder to produce:
a) methane b) ethane c) butane d) ethyne
33] Order of reactivity of C
2
H
6
, C
2
H
4
 and C
2
H
2 
is:
a) C
2
H
6
 < C
2
H
4
 < C
2
H
2
b) C
2
H
2
 > C
2
H
6 
> C
2
H
4
c) C
2
H
4
 > C
2
H
2
 > C
2
H
6
d) All are equally reactive
34] Identify (Y) in the series:
CH = CH 
3
O / NaOH
? ? ? ? ? (X) 
3
Zn/CH COOH
? ? ? ? ? ? (Y) 
a) CH
3
OH b) CH
2
COOH
__
CH
2
COOH
c) CH
3
CH
2
COOH d) CH
2
OH
__
CH
2
OH
35] What is the product when 1-butyne reacts with excess of HBr?
a) 2-2-dibromobutane b) 2-bromobutane
c) 1, 1, 2, 2-tetrabromobutane d) 1, 2-dibromobutene
LH Practice Sheet HYDROCARBONS
LEARNERS HABITAT, 97/1, 3rd Floor, Near NCERT Gate No. 01, Adchini, New Delhi. +91-8510800081/82 
www.learnershabitat.ac.in
 
Page 4
Read More
Offer running on EduRev: Apply code STAYHOME200 to get INR 200 off on our premium plan EduRev Infinity!

Dynamic Test

Content Category

Related Searches

MCQs Question Bank (Competition Preparation) - Hydrocarbons Class 11 Notes | EduRev

,

Summary

,

Free

,

video lectures

,

Extra Questions

,

MCQs

,

Important questions

,

past year papers

,

study material

,

MCQs Question Bank (Competition Preparation) - Hydrocarbons Class 11 Notes | EduRev

,

MCQs Question Bank (Competition Preparation) - Hydrocarbons Class 11 Notes | EduRev

,

mock tests for examination

,

pdf

,

practice quizzes

,

Semester Notes

,

Previous Year Questions with Solutions

,

Exam

,

Viva Questions

,

ppt

,

Objective type Questions

,

shortcuts and tricks

,

Sample Paper

;