Which of the following isotopes of hydrogen has the maximum sum of $e^- + p^+ + n^0$?

Hydrogen acts as a reducing agent and thus resembles

Which of the following will not be reduced by $H_2$?

Hydrogen has three isotopes $(A)$,$(B)$ and $(C)$. If the number of neutron$(s)$ in $(A)$,$(B)$ and $(C)$ respectively,are $(x)$,$(y)$ and $(z)$,the sum of $(x)$,$(y)$ and $(z)$ is:

What do you understand by the term "non-stoichiometric hydrides"? Do you expect this type of the hydrides to be formed by alkali metals? Justify your answer.

Which of the following is a synthesis gas?