Answer:
Option A) oxygen
Explanation:
Oxygen gas it the electrolysis of an aqueous solution of sodium nitrate which a gas forms at anode it is called the oxygen gas
maybe this answer might help u out
Explanation:
A)
Oxygen is released
During the electrolysis of an aqueous solution of sodium nitrate, a gas forms at the anode.as
sodium nitrate=NaNo3 where nitrogen and oxygen are gas.there is no option for nitrogen so answer is oxygen.
