MCQ
Find out the correct pair :
- ✓Metallurgy – Extraction of metals
- BClay – Ore of Al
- CNa – Native element
- DOre – Gangue
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The radius of an atom is 300 pm, if it crystallizes in a face centered cubic lattice, the length of the edge of the unit cell is ____________.
| Column-I | Column-II |
| A. Batyl hydroxy toluene | 1. Soap |
| B. Saccharin | 2. Antioxidant |
| C. Sodium salt of higher fatty acid | 3. Detergent |
| D. Sodium salt of alkyl benzene sulphonic acid | 4. Artificial sweetness |
