Show how will you synthesize:
$(i)$ $1-$phenylethanol from a suitable alkene.
$(ii)$ cyclohexylmethanol using an alkyl halide by an $S_{N}2$ reaction.
$(iii)$ pentan$-1-$ol using a suitable alkyl halide?

(N/A) $(i)$ By acid-catalyzed hydration of styrene $(phenylethene)$,$1-$phenylethanol can be synthesized:
$C_6H_5CH=CH_2 + H_2O \xrightarrow{H^+} C_6H_5CH(OH)CH_3$
$(ii)$ When chloromethylcyclohexane is treated with aqueous $NaOH$,cyclohexylmethanol is obtained via an $S_{N}2$ reaction:
$C_6H_{11}CH_2Cl + NaOH(aq) \to C_6H_{11}CH_2OH + NaCl$
$(iii)$ When $1-$chloropentane is treated with aqueous $NaOH$,pentan$-1-$ol is produced:
$CH_3CH_2CH_2CH_2CH_2Cl + NaOH(aq) \to CH_3CH_2CH_2CH_2CH_2OH + NaCl$