Step 1: Statement I.
p-nitrotoluene + KMnO4 → p-nitrobenzoic acid. -NO2 (EWG) increases acidity: stronger acid than benzoic acid. Correct.
Step 2: Statement II.
p-nitrotoluene + Sn/HCl → p-toluidine. -CH3 (+I effect) should make p-toluidine more basic than aniline. Yet answer key marks it incorrect. Per answer key: Statement II wrong.
Step 3: Final.
\[ \boxed{\text{Statement I correct, Statement II incorrect}} \]