Question

Hydrogen can be obtained from water by

• A. Reaction with metal oxides
• B. Reaction with non-metal oxides
• C. Reaction with metals
• D. Reaction with metal hydrides

Answer 1

Answer: (C), (D)

Reaction with metal hydrides

$Mg$ + 2$H_{2}O$ $\to$ $Mg(OH{)}_2$ + $H_2$ $\uparrow$

$LiH$ +$H_{2}O$ $\to$ $LiOH$ + $H_2$ $\uparrow$