The reaction of ethylamine and acetic anhydride leads to the formation of:

Identify the correct statements:
$(A)$ Primary amines do not give diazonium salts when treated with $NaNO_2$ in acidic conditions.
$(B)$ Aliphatic and aromatic primary amines on heating with $CHCl_3$ and ethanolic $KOH$ form carbylamines.
$(C)$ Secondary and tertiary amines also give the carbylamine test.
$(D)$ Benzenesulfonyl chloride is known as Hinsberg's reagent.
$(E)$ Tertiary amines react with benzenesulfonyl chloride very easily.
Choose the correct answer from the options given below:

The major product in the following reaction sequence is:

In the chemical reaction,
$CH_3CH_2NH_2 + CHCl_3 + 3KOH \rightarrow (A) + (B) + 3H_2O,$
the compounds $(A)$ and $(B)$ are respectively

Considering the basic strength of amines in aqueous solution,which one has the smallest $pK_b$ value?

In the following carbylamine reaction,$x$ represents the moles of $KOH$ consumed:
$C_6H_5NH_2 + CHCl_3 + x KOH \rightarrow C_6H_5NC + 3KCl + 3H_2O$
Find the value of $x$.