Treatment of ammonia with excess of ethyl chloride will yield

In the following reactions,$P$,$Q$,$R$,and $S$ are the major products.
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The correct statement about $P$,$Q$,$R$,and $S$ is

Given below are two statements:
Statement $I$: Pure Aniline and other arylamines are usually colourless.
Statement $II$: Arylamines get coloured on storage due to atmospheric reduction.
In the light of the above statements,choose the most appropriate answer from the options given below:

The product $C$ of the following reaction sequence is:

In the given reaction sequence:
$CH_3-CH_2-OH$ $\xrightarrow[(ii) H^{\oplus}]{(i) KMnO_4/OH^{\ominus}/\Delta} (A)$ $\xrightarrow[(ii) NH_3/\Delta]{(i) SOCl_2} (B)$ $\xrightarrow{Br_2/KOH} (C)$
$(C)$ will be:

Identify $X$ and $Y$ in the following reactions: