Level 2

The solvent of choice for carrying out a Grignard's reaction is:

Which one is a nucleophilic substitution reaction among the following ?

Which of the following does not give benzoic acid on hydrolysis?

Among the following:

I 

II 

III 

IV 

, the compounds which can undergo an ${\mathrm{S}}_{\mathrm{N}}1$ reaction in an aqueous solution are:

A particular form of tribromobenzene forms three possible mono nitro tribromobenzenes. The structure of the compound is

${\left({\mathrm{CH}}_3\right)}_2\mathrm{CH}-{\mathrm{CH}}_2{\mathrm{CH}}_3\stackrel{{\mathrm{Cl}}_2/\mathrm{h\nu }}{⟶}\left[\mathrm{N}\right]\frac{\text{ Fractional }}{\text{ distillation }}\left[\mathrm{P}\right]$ The number of possible isomers $\left[\mathrm{N}\right]$ and number of fractions $\left[\mathrm{P}\right]$ are:

$2$-Methylbutane on reacting with bromine in the presence of sunlight gives mainly

$1$-Bromo-$3$-chloro cyclobutane will react with two moles of $\mathrm{Na}$ in ether producing: