MCQOPTIONS
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MCQOPTIONS
| 1. |
Assertion (A): In the ordinary fire extinguisher, carbon dioxide is generated by the chemical reaction of sodium bicarbonate and dilute sulphuric acid. Reason (R): Carbon dioxide can be used to extinguish fire. |
| A. | if A is true but R is false. |
| B. | if both A and R are true but R is not the correct explanation of A |
| C. | if both A and R are true and R is the correct explanation of A. |
| D. | if A is false but R is true. |
| Answer» C. if both A and R are true and R is the correct explanation of A. | |