Hydrogen and It's Compounds · Chemistry · TS EAMCET

Identify the pair of hydrides which have polymeric structure

The proper conditions of storing $\mathrm{H}_{2} \mathrm{O}_{2}$ are

Observe the following reactions (not balanced)

$$ \begin{aligned} & \mathrm{BF}_3+\mathrm{LiAlH}_4 \xrightarrow{\left(\mathrm{C}_2 \mathrm{H}_5\right)_2 \mathrm{O}} X+\mathrm{LiF}+\mathrm{AlF}_3{ }^{-} \\ & X+\mathrm{NaH} \longrightarrow Y \end{aligned} $$

The incorrect statement about $Y$ is

The dihedral angles in gaseous and solid phases of $\mathrm{H}_2 \mathrm{O}_2$ molecule respectively are