MCQOPTIONS
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| 1. |
Suppose you have to determine the percentage of carbon dioxide in a sample of a gas available in a container. Which is the best absorbing material for the carbon dioxide [Pb. PMT 2001] |
| A. | Heated copper oxide |
| B. | Cold, solid calcium chloride |
| C. | Cold, solid calcium hydroxide |
| D. | Heated charcoal |
| Answer» D. Heated charcoal | |