1.

The correct increasing order of the reactivity of halides for `S_(N^(1))` reaction is:A. `CH_(3)-CH_(3)-X lt (CH_(3))_(2)CH-XltCH_(2)=CH-CH_(2)-XltPhCH_(2)-X`B. `(CH_(3))_(2)CH-XltCH_(3)-CH_(2)-XltCH_(2)=CH-CH_(2)XltPhCH_(2)-X`C. `PhCH_(2)-Xlt(CH_(3))_(2)CH-XltCH_(3)-CH_(2)-XltCH_(2)=CH-CH_(2)-X`D. `CH_(2)=CH-CH_(2)-XltPh-CH_(2)-Xlt(CH_(3))_(2)CH-XltCH_(3)-CH_(2)-X`

Answer» Correct Answer - A
As per carbocation,
stability`toROH+CH_(2)=CH_(2)+Br`


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