As compared with chlorocyclohexane, which of the following statements correctly apply to chlorobenzene?

A. The magnitude of negative charge is more on chlorine atom.

B. The $\mathrm{C}-\mathrm{Cl}$ bond has partial double bond character.

C. $\mathrm{C}-\mathrm{Cl}$ bond is less polar.

D. $\mathrm{C}-\mathrm{Cl}$ bond is longer due to repulsion between delocalised electrons of the aromatic ring and lone pairs of electrons of chlorine.

E. The $\mathrm{C}-\mathrm{Cl}$ bond is formed using $\mathrm{sp}^2$ hybridised orbital of carbon.

Choose the correct answer from the options given below :

The correct order of the rate of reaction of the following reactants with nucleophile by $\mathrm{S}_{\mathrm{N}} 1$ mechanism is :

(Given : Structures I and II are rigid)

The correct order of reactivity of $\mathrm{CH}_3 \mathrm{Br}$ in methanol with the following nucleophiles is

$\mathrm{F}^{-}, \mathrm{I}^{-}, \mathrm{C}_2 \mathrm{H}_5 \mathrm{O}^{-}$and $\mathrm{C}_6 \mathrm{H}_5 \mathrm{O}^{-}$

The correct order of the rate of the reaction for the following reaction with respect to nucleophiles is :

${CH_3Br + Nu^- \longrightarrow CH_3Nu + Br^-}$