1.

Correct order of reactivity of alkyl bromides towards SN^2reaction isCH_3Br(I) , CH_3CH_2Br(II), (CH_3)_2CHBr(III), (CH_3)_3C.Br(IV)

Answer»

IV gt II gt III gt I
I gt II gt III gt IV
I gt IV gt II gt III
IV gt III gt II gt I

Answer :B


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