The product $(Y)$ is:

The principal organic product of the reaction will be:

$C_6H_6 + CH_3CH_2CH_2Cl + AlCl_3 \to X$ (Major product)
$X$ (Major product) $\xrightarrow{HNO_3 + H_2SO_4} Y$ (Major product) $\xrightarrow{Sn + HCl} Z$ $\xrightarrow{H_2SO_4 + SO_3} W$
$W$ is

The compound added to prevent chloroform from forming phosgene gas is

Given below are two statements:
Statement $(I)$: Benzyl chloride reacts faster in $S_N1$ mechanism than ethyl chloride.
Statement $(II)$: Ethyl carbocation intermediate is less stabilized by hyperconjugation than benzyl carbocation by resonance.
In the light of the above statements, choose the correct answer from the options given below:

Identify the correct reactivity order for the $S_N2$ reaction for the following compounds:
$(i)$ $CH_2=CH-Cl$
(ii) $CH_2=CH-CH_2-Cl$
(iii) $N\equiv C-CH_2-CH_2-Cl$