1.

A compound that undergoes bromination easily is

Answer»

toluene
benzoic acid
phenol
benzene

Solution :`PhCH_(3),PhCOOH,PhOH,PhH`.
Among the given compounds, `PhCH_(3) and PhOH` have activating groups, `-OH and -CH_(3),-OH` has a strong +R EFFECT and `CH_(3)` has +I effect and hyperconjugative effect, +R effect being stronger than the +I and hyperconjugative effect, PhOH will undergo the REACTION more readily than `PhCH_(3)`. Again PhCOOH have DEACTIVATING group. PhH has neither a deactivating nor an activating group, so it will be more REACTIVE than the compounds with deactivating groups.


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