Question

Assertion: Gold sol is hydrophobic and multimolecular:

Reason :  Gold sol is prepared by Bredig's arc method.

1. If both (A) and (R) are true and (R) is the correct explanation of (A).
2. If both (A) and (R) are true but (R) is not the correct explanation of (A)
3. If (A) is correct but (R) is incorrect.
4. If (A) and (R) are both incorrect.