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| Q. |
Acids on reacting with metal carbonates release which of the following gases? |
| A. | Hydrogen sulphide |
| B. | Carbon Dioxide |
| C. | Propane |
| D. | Hydrogen |
| Answer» B. Carbon Dioxide | |
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Explanation: When an acid reacts with a metal carbonate, a salt, water and carbon dioxide are produced: Acid + metal carbonate → salt + water + carbon dioxide |
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