MCQ
Silicate contains ……….. silicon and oxygen in units.
- ✓$\left[ SiO _2\right]^{4-}$
- B$\left[ SiO _2\right]$
- C$\left[ SiO _2\right]^{2-}$
- D$\left[ SiO _2\right]^{-}$
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| Column I | Column II |
| A. Vitamin $B _1$ | 1. Pantothenic acid |
| B. Vitamin $B _2$ | 2. Niacin |
| C. Vitamin $B_3$ | 3. Thiamin |
| D. Vitamin $B_5$ | 4. Riboflavin |