$S_N1$ reactions are generally carried out in which type of solvents?

Which of the following haloalkanes reacts with aqueous $KOH$ most easily? Explain giving reason.
$(i)$ $1$-Bromobutane
$(ii)$ $2$-Bromobutane
$(iii)$ $2$-Bromo-$2$-methylpropane
$(iv)$ $2$-Chlorobutane

What will be the product in the following reaction?
$1$-chloro-$1$-methylcyclohexane $\xrightarrow{H_2O}$ ?

What type of reaction is the following: $CH_3CH_2Cl + KOH(aq.) \rightarrow CH_3CH_2OH + KCl$?

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) $N\equiv C-CH_2-CH_2-Cl$

An alkyl halide may be converted into an alcohol by