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| Q. |
Pick up the correct statement from the following: |
| A. | The free quartz suddenly expands at a temperature lower than 600°C |
| B. | The lime stone resists fire upto about 800°C and at higher temperature it splits into CaO and CO2 |
| C. | The sand stone with silicates resist a fire in a better way |
| D. | All the above |
| Answer» D. All the above | |
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