Which of the following forms of hydrogen emits low energy $\beta^{-}$ particles?

Which of the following substances is used as a dehydrating agent in the laboratory?

$BF_3$ reacts with $NaH$ at $450 \ K$ to form $NaF$ and $X$. When $X$ reacts with $LiH$ in diethyl ether,$Y$ is formed. What is $Y$?

$H^+$,$D^+$,and $T^+$ differ in all of the following $EXCEPT$ one.

Identify the reactions in which $H_2$ is liberated? $(i)$ $Zn + NaOH_{(aq)} \longrightarrow$ $(ii)$ $HCOOH \xrightarrow[\text{Conc. } H_2SO_4]{373 \ K}$ $(iii)$ $CH_{4(g)} + H_2O_{(g)} \xrightarrow[Ni]{1270 \ K}$ $(iv)$ $Zn + H^+_{(aq)} \longrightarrow$ $(v)$ $C_{(s)} + H_2O_{(g)} \xrightarrow{1270 \ K}$

Which of the following hydrides is neutral?