The major product of the following reaction, if it occurs by ${\mathrm{S}}_{\mathrm{N}}2$ mechanism is :

The major product (A) formed in the reaction given below is :

In the following sequence of reactions the $\mathrm{P}$ is:

For the given reaction:

What is $\mathrm{A}$?

Consider the given reaction, the Product $\mathrm{A}$ is:

Among the following compounds $\mathrm{I}-\mathrm{IV},$ which one forms a yellow precipitate on reacting sequentially with (i) $\mathrm{NaOH}$ (ii) dil. ${\mathrm{HNO}}_3$ (iii) ${\mathrm{AgNO}}_3?$

The correct decreasing order of densities of the following compounds is :

The correct order of the following compounds showing increasing tendency towards nucleophilic substitution reaction is: