railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test General Science Chemistry Equilibrium
Which of the following gases are evolved at the anode and the cathode, respectively, during electrolytic decomposition of aqueous sodium chloride?
1
H2 gas at the anode and O2 gas at the cathode.
2
O2 gas at the anode and H2 gas at the cathode.
3
Cl2 gas at the anode and H2 gas at the cathode.
4
H2 gas at the anode and Cl2 gas at the cathode.