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प्रश्न
Copy and complete the following table which refers to the action of heat on some carbonates:
| Carbonate | Colour of residue on cooling |
| Zinc Carbonate | |
| Lead carbonate | |
| Copper carbonate |
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उत्तर
| Carbonate | Colour of residue on cooling |
| Zinc Carbonate | Yellow when hot, white on cooling |
| Lead carbonate | Yellow on cooling |
| Copper carbonate | Light green amorphous powder changes to black on cooling. |
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