MCQ
To prepare acetic acid,
- Amethyl alcohol is oxidized with $KMnO _4$
- Bcalcium acetate is distilled with calcium for-mate under dry conditions
- ✓acetaldehyde is oxidized in the presence of $K _2 Cr _2 O _7$ and dil. $H _2 SO _4$
- Dglycerol is heated with $H _2 SO _4$