ENTRANCE TEST – 2015 Multiple Questions and Answers.
Exercise Questions ::
CHEMISTRY
11. | When the change in concentration is 6 x 10-4 mol dm-3 and time for that change is 10 seconds, the rate of reaction will be |
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| A. | 6 × 10-3 mol dm-3 sec-1 |
| B. | 6 × 10-4 mol dm-3 se -1 |
| C. | 6 × 10-2 mol dm-3 sec-1 |
| D. | 6 × 10-5 mol dm-3 sec-1 |
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14. | Which one of the following gases is used as mixture for breathing by sea divers? |
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| A. | Oxygen and Nitrogen |
| B. | Nitrogen and Helium |
| C. | Helium and Oxygen |
| D. | Helium and Hydrogen |
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