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(A) The reaction involves the nitration of $2$-methyl$-4-$nitrophenol using concentrated $HNO_3$ and concentrated $H_2SO_4$. The $-OH$ group is a stro

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$2-$methyl$-4,6-$dinitrophenol

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(A) The reaction involves the nitration of $2$-methyl$-4-$nitrophenol using concentrated $HNO_3$ and concentrated $H_2SO_4$. The $-OH$ group is a strong activating group and is ortho/para directing. The $-CH_3$ group is also ortho/para directing. The $-NO_2$ group is meta directing. In $2$-methyl$-4-$nitrophenol,the positions ortho to the $-OH$ group are position $6$ (which is vacant) and position $3$ (which is also vacant). However,position $6$ is less sterically hindered compared to position $3$,which is adjacent to the $-CH_3$ group. Therefore,the incoming $-NO_2^+$ electrophile attacks the $6$-position to form $2$-methyl$-4,6-$dinitrophenol as the major product.

The major product of the following reaction is:

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