Alcohols( Identification of Primary, Secondary,...) NEET Questions

Organic Chemistry - Organic Compounds Containing Oxygen

Alcohols( Identification of Primary, Secondary,...) MCQ Questions


13.
What is the product when 2-butanol undergoes dehydration?
A.
1-butene
B.
2-butene
C.
butyne
D.
butanol
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ANSWER :
B. 2-butene
14.
Which of the following represents a secondary alcohol?
A.
2-propanol
B.
1-propanol
C.
methanol
D.
2-methyl-2-propanol
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ANSWER :
A. 2-propanol
15.
Which of these is most resistant to dehydration?
A.
Tertiary alcohol
B.
Secondary alcohol
C.
Primary alcohol
D.
All same
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ANSWER :
C. Primary alcohol
16.
The dehydration of alcohol involves:
A.
SN1 mechanism
B.
SN2 mechanism
C.
E1 mechanism
D.
E2 mechanism
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ANSWER :
C. E1 mechanism
17.
Which alcohol is least reactive towards Lucas reagent?
A.
Methanol
B.
1-butanol
C.
2-butanol
D.
tert-butanol
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ANSWER :
A. Methanol
18.
Which intermediate is formed during alcohol dehydration?
A.
Radical
B.
Carbocation
C.
Carbanion
D.
Carbene
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ANSWER :
B. Carbocation