Question

Dihydrogen $\left(H_2\right)$ on reaction with metal ions and metal oxides:

• A. Gets oxidised.
• B. Gets reduced.
• C. Does not react.
• D. Can get oxidised or reduced.

Answer 1

The correct option is A Gets oxidised.

Dihydrogen $\left(H_2\right)$ on reaction with metal ions and metal oxides:
$H_2\left(g\right)+P{d}^{2+}\left(aq\right)\to Pd\left(s\right)+2H^{+}\left(aq\right)$

$y{H}_2+M_x{O}_y\left(s\right)\to xM\left(s\right)+y{H}_{2}O\left(l\right)$

Hydrogen gets oxidised from $0$ to $+1$ oxidation state.