Dihydrogen reacts with $CuO$ to give:

Isotope$(s)$ of hydrogen which emits low energy $\beta^{-}$ particle with $t_{1/2}$ value $> 12 \ years$ is/are :

Atomic weight of the isotope of hydrogen which contains $2$ neutrons in the nucleus would be

Carbongene has $X\%$ of $CO_2$ and is used as an antidote for poisoning of $Y.$ Then,$X$ and $Y$ are

How is $H_2S$ prepared in the laboratory using $FeS$?

Hydrogen is produced by the reaction: