MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryHydrogenPreparation of Dihydrogen
…….X….. are crystalline, non-volatile and non- conducting in solid state. (X) Melts conduct electricity and on electrolysis liberate dihydrogen gas at anode. Here, X refers to
A.Ionic or saline hydrides✓ Correct
B.Covalent or molecular hydrides
C.Metallic hydrides
D.Stoichiometric hydrides
Explanation
The ionic or saline hydrides are crystalline, non- volatile, and non-conducting in solid state. However, their melts conduct electricity and on electrolysis liberate dihydrogen gas at anode which confirms the existence of H ion. 2 Anode 2H melt H g 2e ->