Q. 27

Which of the following statements is correct?
A. Metallic hydrides are deficient of hydrogen.

B. Metallic hydrides conduct heat and electricity.

C. Ionic hydrides do not conduct electricity in solid state.

D. Ionic hydrides are very good conductors of electricity in solid state.

Answer :

Metallic hydrides are non-stoichiometric hydrides. They conduct heat and electricity.

Whereas, ionic hydrides conduct electricity only in molten or in aqueous state. This is because charge dissociation is not possible in the solid state. It is only possible when the sample is either electrolysed or is in aqueous state.

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