MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic ChemistryHydrogenNitrogen forms electron rich covalent hydride

From group 6 only one metal forms hydride. This metal is

A.Mo

B.W

C.Cr✓ Correct

D.Co

Explanation

Group 6, 7, 8 and 9 has low affinity for hydrogen in the normal oxidation state of the metal. It is called as the hydride gap. However, the metal Chromium from Group 6 is an exception and form hydride compound with hydrogen. It is called Chromium (I) hydride (CrH).

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