Question

Assertion: The reaction of oxalic acid with acidified  is first slow and then proceed with faster speed.

Reason :  Acidified  is a strong oxidising agent.

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.