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प्रश्न
Write the symbols for the following elements.
- Oxygen
- Gold
- Calcium
- Cadmium
- Iron
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उत्तर
| S.No | Element | Symbols |
| (i) | Oxygen | O |
| (ii) | Gold | Au |
| (iii) | Calcium | Ca |
| (iv) | Cadmium | Cd |
| (v) | Iron | Fe |
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