Discuss the mechanism of nuclear halogenation of arenes?

Write down the products and give the mechanism of the following reaction : ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{OH} + {\mathrm{H}}_2{\mathrm{SO}}_4$ (conc.)

Write down the products and give the mechanism of the following reaction.

${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_3 + {\mathrm{HNO}}_3 \mathrm{and} {\mathrm{H}}_2{\mathrm{SO}}_4$ (conc.)

Predict the products of the following reaction

Predict the products of the following reaction:

Predict the products of the following reactions 

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