MCQ
Vitamin A is known as:
- AAscorbic acid
- ✓Retinol
- CCalciferol
- DTocopherol
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| Column I | Column II |
| (a) Solution of gas in gas | (i) Brass |
| (b) Solution of solid in solid | (ii) Air |
| (c) Solution of liquid in gas | (iii) Zinc amalgam |
| (d) Solution of liquid in solid | (iv) Chloroform in Nitrogen |