MCQ
Benzoin is
- ACompound containing an aldehyde and a ketonic group
- B$\alpha$, $\beta$ -unsaturated acid
- C$\alpha$-hydroxy aldehyde
- ✓$\alpha$-hydroxy ketone

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| Column I | Column II |
| (a) Hypertonic | (i) NaCl. |
| (b) Hypotonic | (ii) Solution having higher osmotic pressure than other solution. |
| (c) Isotonic | (iii) Solution having lower osmotic pressure than other solution. |
| (d) Electrolyte | (iv) Solutions having same osmotic pressure. |