Exercise 1

Which one is a nucleophilic substitution reaction among the following ?

Among the following:

I 

II 

III 

IV 

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

${\left({\mathrm{CH}}_3\right)}_2\mathrm{CH}-{\mathrm{CH}}_2{\mathrm{CH}}_3\stackrel{{\mathrm{Cl}}_2/\mathrm{h\nu }}{⟶}\left[\mathrm{N}\right]\frac{\text{ Fractional }}{\text{ distillation }}\left[\mathrm{P}\right]$ 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:

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

The following compound reacts with ${\mathrm{Br}}_2$ $/\mathrm{Fe}$ to produce

The reaction

$({\mathrm{CH}}_{\mathrm{3}}{)}_{\mathrm{3}}\mathrm{C}-\mathrm{Br} \underset{-\mathrm{HBr}}{\overset{{\mathrm{H}}_{\mathrm{2}}\mathrm{O}}{\to }}({\mathrm{CH}}_{\mathrm{3}}{)}_{\mathrm{3}}\mathrm{COH}$ is an example of ____