MCQ
Conservation of energy leads to :
- ALess pollution
- BLess cost
- CConservation of resources
- ✓All of the above
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| Column I | Column II |
| a. A metal that forms amphoteric oxides | (i) Ga |
| b. A metal which melts when kept on our palm | (ii) Au |
| c. A metal that reacts with nitric acid | (iii) Al |
| d. A metal which cannot displace hydrogen from acids | (iv) Mn |