$\text{'}\mathrm{X}\text{'}$ and $\text{'}\mathrm{Y}\text{'}$ are optically active isomers having formula ${\mathrm{C}}_5{\mathrm{H}}_9\mathrm{Cl}.$ When treated with one mole of ${\mathrm{H}}_2,\mathrm{X}\text{'}$ gets converted to an optically inactive compound $\text{'}\mathrm{Z}\text{'},$ but $\text{'}\mathrm{Y}\text{'}$ gives an optically active compound $\text{'}\mathrm{P}\text{'}$ The structure of $\mathrm{X}$ and $\mathrm{Y}$ respectively are

The major product of the following reaction is:

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

In the following reaction sequence

X and Y are

The major product of the following reaction is:

The major product in the following conversion is

What is the major product expected from the following reaction?



Where D is an isotope of hydrogen.