What will be the correct relation between product when $2-$methyl cyclohexene is treated with (a) ${\mathrm{B}}_2{\mathrm{H}}_6$ in presence of ${\text{H}}_2{\text{O}}_2/{\text{OH}}^{\ominus }$ and (b) ${\mathrm{H}}_2\mathrm{O}/{\mathrm{H}}_2{\mathrm{SO}}_4$ (also consider stereochemistry of product)?

The major product in the following conversion is

The major product of the following reaction is:

In the following reaction sequence

X and Y are

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

What is the major product expected from the following reaction?



Where D is an isotope of hydrogen.

The major product of the following reaction is: