In the below mentioned compounds the decreasing order of reactivity towards electrophilic substitution is…

In the below mentioned compounds the decreasing order of reactivity towards electrophilic substitution is (i)
(ii)
(iii)
(iv)

1. (iv) $>$ (i) $>$ (ii) $>$ (iii)
2. (ii) $>$ (iii) $>$ (i) $>$ (iv)
3. (iii) $>$ (i) $>$ (iv) $>$ (ii)
4. (i) $>$ (ii) $>$ (iii) $>$ (iv)

Solution

$-\mathrm{OCH}_3$ and $-\mathrm{CH}_3$ groups are activating group while $-\mathrm{CF}_3$ is a deactivating group.

Asked in: JEE Main 2012 (12 May Online)

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