MCQOPTIONS
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| 1. |
Sodium bicarbonate is useful in extinguishing fire because- |
| A. | When heated, it decomposes to produce carbon dioxide, which extinguishes the fire. |
| B. | It acts like a cover for the fire. |
| C. | It releases water which extinguishes the fire. |
| D. | It produces foam, which extinguishes the fire. |
| Answer» B. It acts like a cover for the fire. | |