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Reduction of Alkyl Halide

Alkynes are m...

Question

Alkynes are more acidic than alkanes and alkenes due to:

A

More p character of alkynes

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B

More s character of alkynes

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C

Less s- character of alkynes

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D

Less p character of alkynes

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Solution

The correct option is B
More s character of alkynes

Due to presence of more s-character, the alkynes are more electronegative. Thus in Ethyne hydrogen atoms can be liberated as protons more easily.

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Q. Identify the incorrect statement/statements :
(i) Alkynes are more reactive than alkenes towards electrophilic addition reaction
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Q. Identify the incorrect statement/statements :
(i) Alkynes are more reactive than alkenes towards electrophilic addition reaction
(ii) Alkynes are less reactive than alkenes towards electrophilic addition reaction
(iii) Alkynes decolourise

B r_{2}

water
(iv) Addition of

H B r

to alkenes in presence of peroxide proceeds via Markovnikov's rule

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