Given below are two statements: 

Assertion (A): Electrolysis of NaCl solution gives chlorine at anode instead of O2 .
Reason (R): Formation of oxygen at anode requires overvoltage.

 

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.