Which one of the following does not give a white precipitate with acidified silver nitrate solution?

In a reaction of $C_6H_5Y$,the major product obtained is the $60\%$ isomer. What is the group $Y$?

The correct order of reactivity for reactions involving the cleavage of the $C-Cl$ bond in the following compounds is:

For the reaction shown below,identify the major product $A$ and the reaction mechanism $R$:
$m$-bromoanisole $\xrightarrow{NaNH_2} A, R$

Why do electrophilic substitution reactions in haloarenes occur at ortho and para positions,yet are slower than in benzene? Explain.

Given below are two statements:
Statement $I$: Benzene is nitrated to give nitrobenzene,which on further treatment with $CH_{3}COCl / AlCl_{3}$ will give the product shown in the image.
Statement $II$: $NO_{2}$ group is a $m$-directing and deactivating group.
In the light of the above statements,choose the most appropriate answer: