Question

The compound that will react most readily with
gaseous bromine has the formula
(a) C3H6
(b) C2H2
(c) C4H10
(d) C2H4

(NEET-II 2016)
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Answer 1

I think 1 is right answer.

explanation:-

given reaction involves gaseous bromine, so high temperature is required..as bromine is a liquid at room temperature. thus bromination reaction would takes place by free radical machanism which is possible with if butane or either propene. ....

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...but gaseous bromine will react faster with propene because the allylic free radical is more stable due to conjugation.

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mate I think it's may help you.

Regards:-

sáúryæ.