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(B) $1$. Cyclopentanol reacts with $PBr_3$ to form bromocyclopentane $(W)$.$2$. Bromocyclopentane reacts with $Mg$ in ether to form the Grignard reage

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(B) $1$. Cyclopentanol reacts with $PBr_3$ to form bromocyclopentane $(W)$.$2$. Bromocyclopentane reacts with $Mg$ in ether to form the Grignard reagent,cyclopentylmagnesium bromide $(X)$.$3$. Cyclopentanol is oxidized by $Na_2Cr_2O_7$ to form cyclopentanone $(V)$.$4$. The Grignard reagent $(X)$ reacts with cyclopentanone $(V)$ followed by acidic workup $(H_3O^+)$ to form dicyclopentylmethanol $(Y)$.$5$. Dicyclopentylmethanol $(Y)$ reacts with acetyl chloride $(CH_3COCl)$ to form the ester product $Z$.

Column-$I$ (Reaction)	Column-$II$ (Electrophile)
$A$. $C_6H_6 + CH_3Cl \xrightarrow{AlCl_3} C_6H_5CH_3$	$P$. $CO_2$
$B$. $C_6H_5OH + CO_2 \xrightarrow[H^+]{NaOH} \text{Salicylic acid}$	$Q$. $:CCl_2$
$C$. $C_6H_5OH + CHCl_3 \xrightarrow{KOH} \text{Salicylaldehyde}$	$R$. $\stackrel{+}{C}H_3$
$D$. $C_6H_6 + SO_3 \xrightarrow{H_2SO_4} C_6H_5SO_3H$	$S$. $\stackrel{+}{S}O_3H$
	$T$. $SO_3$

The product $Z$ of the above reaction is:

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