Name the following reactions:

$\left(\mathrm{i}\right)$ The carbonyl group of aldehyde and ketones is reduced to $-{\mathrm{CH}}_2$ group on treatment with zinc amalgam and concentrated hydrochloric acid.

$\left(\mathrm{ii}\right)$ Aldehydes that do not contain any $\mathrm{\alpha }-$hydrogen atom undergo self-oxidation and reduction reaction on treatment with concentrated alkali.

The major product of the following reaction is:

Compound $\mathrm{\prime }\mathrm{x}\mathrm{\prime }$ is:

The major product obtained in the following reaction is:

The major product 'X' formed in the following reaction is:

The major product of the following reaction is:

In the following reactions, products $\mathrm{A}$ and $\mathrm{B}$ are:

In the following reactions


X and Y are

The increasing order of the reactivity of the following with $\text{L}\text{i}\text{A}\text{l}{\text{H}}_4$ is:

$\left(A\right)$

$\left(B\right)$

$\left(C\right)$

$\left(D\right)$

In the reaction sequence

The major product X and Y, respectively, are

The major product formed in the following reaction is: