Identify the strongest base from the given compounds.

In the $Hofmann$ bromamide degradation reaction,the number of moles of $NaOH$ and $Br_2$ used per mole of amine produced are:

In the reaction sequence $CH_3Cl$ $\xrightarrow{KCN}$ $\xrightarrow{+4H} A$ $\xrightarrow{NaNO_2/HCl} \text{Ethyl alcohol} + ?$. What are the major and minor products formed?

Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$.
Assertion $(A)$: $\alpha$-halocarboxylic acid on reaction with dil. $NH_3$ gives good yield of $\alpha$-amino carboxylic acid whereas the yield of amines is very low when prepared from alkyl halides.
Reason $(R)$: Amino acids exist in zwitter ion form in aqueous medium.
In the light of the above statements,choose the correct answer from the options given below:

The decreasing order of basicity is:
$(1) \ CH_3CONH_2$
$(2) \ CH_3CH_2NH_2$
$(3) \ PhCH_2CONH_2$

The compound $X$ $(C_7H_9N)$ reacts with benzenesulfonyl chloride to give $Y$ $(C_{13}H_{13}NO_2S)$ which is insoluble in alkali. The compound $X$ is