The correct increasing order of the reactivity of halides for S_(N)' r

1.	The correct increasing order of the reactivity of halides for S_(N)' reaction is -
Answer» `CH_(3) - Ch - X lt (CH_(3))_(2)Ch -X lt CH_(2) = CH - CH_(2) - X lt PhCH - X` `(CH_(3))_(2)CH - X lt CH_(3) - CH_(2) - X lt CH_(2) = CH - CH_(2)x lt PhCH_(2) - X` `PhCH_(2) - X lt (CH_(2))CH-X lt CH_(3) - CH_(2) - X lt CH_(2) = CH - CH_(2) - X` `CH_(2) = CH - CH_(2) - X lt PH - CH_(2) - X lt (CH_(3))_(2) CH - X lt CH_(3) - CH_(2) - X` ANSWER :A

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