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What will be the decreasing order of electrophilic nitration of the following compounds?

What will be the decreasing order of electrophilic nitration of the following compounds? Correct Answer R > P > S > Q

R > P > S > Q In R electron donating group is present. In P, Cl will attract rings electron and donation will increase. In S there is electron donating group hence it is more reactive. If C2H5 is not there than this order reverses. In Q electron pair will get into resonance.

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