The compounds $\mathrm{A}$ and $\mathrm{B}$ can be distinguished by:-

In the above reaction sequence, the correct structures of $\mathrm{E}, \mathrm{F}$ and $\mathrm{G}$ are 

(* implies $13-\mathrm{C}$)

${\mathrm{CH}}_2\mathrm{O}\underset{{\mathrm{H}}_3{\mathrm{O}}^{+}}{\overset{{\mathrm{CHD}}_2\mathrm{MgI}}{\to }}\mathrm{X}\underset{∆}{\overset{\mathrm{Concentrated} {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }}\mathrm{Y}$

In the above reaction, $\mathrm{X}$ and $\mathrm{Y}$, respectively, are

What are the correct statements about the products in the above sequence of reactions?

$\text{(a) B}$ can give a positive iodoform test.

$\left(\mathrm{b}\right) \mathrm{C}$ can exist in the form of enantiomers

$\left(\mathrm{c}\right) \mathrm{C}$ on heating gives a diastereomeric mixture.

$\left(\mathrm{d}\right) \mathrm{B}$ on oxidation gives an unsymmetrical ketone.

$\left(\mathrm{e}\right) \mathrm{B}$ gives a red colour in Victor Meyer test.

What is the product $\mathrm{A}$ in the following reaction?

In a set of reactions, propionic acid yielded a compound $\mathrm{D}$.

${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{COOH}\stackrel{{\mathrm{SOCl}}_2}{⟶}\mathrm{B}\stackrel{{\mathrm{NH}}_3}{\to }\mathrm{C}\underset{{\mathrm{Br}}_2}{\overset{\mathrm{KOH}}{\to }}\mathrm{D}$

The structure of $\mathrm{D}$ would be