What is the primary product of the electrolysis of brine (concentrated NaCl solution)?
A
Only water
B
Only sodium metal
C
Chlorine gas, hydrogen gas, and sodium hydroxide
D
Only oxygen gas
Correct Answer: Option C — Chlorine gas, hydrogen gas, and sodium hydroxide
Explanation:
Electrolysis of brine, the chlor-alkali process, produces chlorine gas at the anode, hydrogen gas at the cathode, and sodium hydroxide remains in solution, all of which are commercially valuable products.