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Q.

Which of the following statements is correct ?

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a

Alkynes are more reactive than alkenes towards halogen addition.

b

Alkenes are more reactive than alkynes towards halogen addition

c

Both alkynes and alkenes are equally reactive towards halogen addition

d

Primary vinylic cation RCH=C⊕H is less reactive than secondary vinylic cation RC⊕=C H,

answer is B.

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Detailed Solution

The triple bonds of alkynes, because of its high electron density, are easily attacked by electrophiles, but less reactive than alkenes due to the compact C-C electron cloud.
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