MCQ
Boric acid is an acid because its molecule ____________.
- Acontains replaceable H+ ion
- Bgives up a proton
- Ccombines with proton to form water molecule
- ✓accepts $OH ^{-}$ from water, releasing proton
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Column I | Column II |
| A. Phylloquinone | 1. Vitamin C |
| B. Tocopherol | 2. Vitamin A |
| C. Ascorbic acid | 3. Vitamin K |
| D. Retinol | 4. Vitamin E |
| Column-I | Column-II |
| A. Local anaesthetic | 1. Cetrizine |
| B. General anaesthetic | 2. Cemitidine |
| C. Antacid | 3. Procaine |
| D. Anti histamine | 4. Propofol |
Assertion: p-N, N-dimethyl amino benzaldehyde undergoes benzoin condensation
Reason: The aldehydic (−CHO) group is meta directing.