Alkynes(Acidic Character: Addition of Hydrogen,...) NEET Questions

Organic Chemistry - Hydrocarbons

Alkynes(Acidic Character: Addition of Hydrogen,...) MCQ Questions


7.
What is the IUPAC name of CH≡C–CH₂–CH₃?
A.
Butyne
B.
1-Butyne
C.
2-Butyne
D.
Butene
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ANSWER :
B. 1-Butyne
8.
Which of the following compounds exhibits acidic character?

NEET - 2017

A.
Ethane
B.
Ethene
C.
Propyne
D.
Ethyne
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ANSWER :
D. Ethyne
9.
Which of the following alkynes has the most acidic hydrogen?
A.
Ethyne
B.
Propyne
C.
Butyne
D.
Pent-2-yne
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ANSWER :
A. Ethyne
10.
The product formed on the complete hydrogenation of ethyne in the presence of nickel is:

NEET - 2018

A.
Ethene
B.
Ethyl alcohol
C.
Ethane
D.
Ethene and Ethanol
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ANSWER :
C. Ethane
11.
Reaction of ethyne with HgSO₄ in presence of H₂SO₄ leads to the formation of:

NEET - 2017

A.
Ethanol
B.
Ethanal
C.
Acetone
D.
Acetic acid
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ANSWER :
B. Ethanal
12.
Which of the following reagents is used for polymerization of ethyne?
A.
H₂
B.
Br₂
C.
Cu₂Cl₂
D.
NaOH
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ANSWER :
C. Cu₂Cl₂