Ionisation of $H$-atom would produce

An alkali metal hydride $(NaH)$ reacts with diborane in '$A$' to give a tetrahedral compound '$B$' which is extensively used as a reducing agent in organic synthesis. The compounds '$A$' and '$B$' respectively are

Consider the following sequence of reactions: $Na + NH_{3(g)} \to [X]$ $\xrightarrow{N_2O} [Y]$ $\xrightarrow{\text{Heat}} [Z] (\text{Gas, Pure})$. Identify $[Z]$ gas.

What is the sum of neutrons and protons in the heaviest isotope of hydrogen?

Write the names of the isotopes of hydrogen. What is the mass ratio of these isotopes?

Which of the following pairs of reactions give $H_2$ gas as a product upon hydrolysis?