Compare the relative rate of reaction with $H_2O$ for the following compounds:

Which of the following compounds can give a positive iodoform test when treated with aqueous $KOH$ solution followed by potassium hypoiodite?

Which of the following alkyl halides has the lowest boiling point?

Assertion $(A)$: $1-$Bromopentane reacts with $AgCN$ to give pentylisocyanide.
Reason $(R)$: $AgCN$ is mainly ionic in nature.

Which of the following is most reactive towards alcoholic $KOH$?

Among the following chlorides, the compounds which will be hydrolysed most easily and most slowly in aqueous $NaOH$ solution are respectively:
$1$. Methoxymethyl chloride $(CH_3OCH_2Cl)$
$2$. Benzyl chloride $(C_6H_5CH_2Cl)$
$3$. Neopentyl chloride $((CH_3)_3CCH_2Cl)$
$4$. Propyl chloride $(CH_3CH_2CH_2Cl)$