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  • Sodium forms a crystalline ionic solid with dihydrogen. The solid is non-volatile and non- conducting in nature.

Sodium forms a crystalline ionic solid with dihydrogen. The solid is non-volatile and non- conducting in nature. It reacts violently with water to produce dihydrogen gas. Write the formula of this compound and its reaction with water. What will happen on electrolysis of the melt of this solid?

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Saline hydrides produce a dihydrogen gas during a violent reaction with water. The ionic solid crystal which is formed is non-conducting and non-volatile in nature and reacts aggressively with water for producing the dihydrogen gas.

The formula for this compound is NaH, its reaction with water is explained below: -

NaH (s) + H_{2}O (aq) \rightarrow NaOH (aq) +H_{2} (g)

Dihydrogen gas at the anode is liberated during electrolysis, which confirms the existence of H-ion.

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