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Question:

Correct order for reaction with alcoholic KOH

a>b>c>d

d>b>c>a

a>c>b>d

a>d>b>c

Solution:

Correct option is B. a>c>b>d
Solution:- (B)a>c>b>d
In alkyl halides, polarity of C−X bond increases with increase in chain length.
Hence the correct order of reaction with alcoholic KOH will be a>c>b>d