" Hydrogen can be obtained from water,by the action of water on "

Hydrogen can be obtained from water by reaction with

Assertion (A) : Dihydrogen is prepared in the laboratory by the action of conc H_2SO_4 on granular zinc. Reason (R) : Pure hydrogen can be obtained by the action of water on sodium hydride.

Assertion (A) : Dihydrogen is prepared in the laboratory by the action of conc H_2SO_4 on granular zinc. Reason (R) : Pure hydrogen can be obtained by the action of water on sodium hydride.

H_(2)S gas can be obtained by the action of water on:

H_(2)S gas can be obtained by the action of water on:

Pure H_2S gas can be obtained by the action of water on :

H_(2)S gas can be obtained by the action of water on:

Iodine can be obtained from NaI solution by the action of