Alcoholic potash is used to bring about

The major product $P$ of the above reaction is:

Toluene reacts with excess of $Cl_2$ in the presence of sunlight to give a product which on hydrolysis followed by reaction with $NaOH$ gives:

An alkyl bromide $(X)$ reacts with sodium in ether to form $4,5-$diethyl octane. The compound $X$ is:

$A$ halogen compound $X$ $(C_4 H_9 Br)$ on hydrolysis gives an alcohol $Y$. The alcohol $Y$ undergoes dehydration with $20 \% H_3 PO_4$ at $358 \ K$. What is $X$?

Nitrochloroform (Chloropicrin) is prepared by the action of chloroform and: