Aliphatic amines are more basic compared to aromatic amines.

Which of the following statements is true?

$1$) Tertiary amines react with acid chlorides.
$2$) $\mathrm{N}-$ethyl benzene sulphonamide is soluble in alkali.
$3$) $\mathrm{N}, \mathrm{N}-$diethyl benzene sulphonamide is soluble in alkali.
$4$) Tertiary amines react with Hinsberg's reagent.

In the above reaction, the product $\mathrm{P}$ is

Azo-dyes are prepared from ______.                               [CPMT 2001]

Predict the possible number of alkenes and the main alkene in the above reaction.

Represent the union of two sets by Venn diagram for each of the following.

$X=\{x | x$ is a prime number between $80$ and $100\}$

$Y=\{y | y$ is an odd number between $90$ and $100\}$

$\mathbf{X}\mathbf{ }\underset{{\mathbf{s}}_{\mathbf{N}}\mathbf{2}}{\overset{{\mathbf{PhCH}}_{\mathbf{2}}{\mathbf{CH}}_{\mathbf{2}}\mathbf{Br}}{\mathbf{\to }}}\mathbf{ }\mathbf{Y}\stackrel{{\mathrm{OH}}^{-}}{⟶}\mathbf{Z}\stackrel{\mathrm{\Delta }}{⟶}\underset{\mathrm{Major} \mathrm{product}}{\mathbf{A}+\mathbf{B}}$

Which of the following is true if $\mathrm{A}$ is a nitrogen containing compound?