The weight of hydrogen gas obtained from 42 g of `CaH_(2)` by treatment with water is....gm

What is the weight of hydrogen gas (in g) obtained from 42 g of CaH_2 by treatment with water ?

Hydrogen can be obtained from water by

Hydrogen can be obtained from water by reaction with

Hydrogen can be obtained from water, by the action of water on

Name the gas liberated when CaH_(2) reacts with water.

An element reacts with hydrogen to form a compound A which on treatment with water liberates hydrogen gas. The element can be

An element reacts with hydrogen to form a compound X which on treatment with water liberates hydrogen gas. The element can be