MHT CET20192 May 2019Morning ShiftChemistrys Block ElementsActual
What happens when ionic hydrides of s-block elements in molten state are electrolysed?
Options
- AHydride ion migrates at cathode
- BDihydrogen is liberated at cathode
- CHydride ion reforms metal hydride
- DDihydrogen is liberated at anode
Correct answer
D. Dihydrogen is liberated at anode
Step-by-step solution
When an ionic hydride of s-block elements is electrolyzed in its molten state, metal cation is reduced to metal and hydride ion is oxidized to dihydrogen.