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  4. The ease of dehydrohalogenation with alcoholic KOH in case of chloroethane (I), 2-chloropropane (II) and 2-chloro-2 methylpropane (III) is of the order

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Q. The ease of dehydrohalogenation with alcoholic $KOH$ in case of chloroethane (I), 2-chloropropane (II) and 2-chloro-2 methylpropane (III) is of the order

Haloalkanes and Haloarenes

Solution:

image

Rate of dehydrohalogenation

$3^{\circ} RX >2^{\circ} RX >1^{\circ} RX$

So $(III) > (II) > (I)$