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| Q. |
The biogas used for cooking is a mixture of which of the following? |
| A. | Carbon dioxide and oxygen |
| B. | Isobutane and propane |
| C. | Methane and Carbon monoxide |
| D. | Methane and carbon dioxide |
| Answer» D. Methane and carbon dioxide | |
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Explanation: Biogas is essentially a mixture of Methane (CH4, around 55-75%) but also contains Carbon Dioxide (CO3), around 25- 30%), varying quantities of Water (H2O) and Hydrogen Sulphide (H2S). Other compounds can also be found, especially in waste dump biogas: Ammonia (NH3), Hydrogen (H2), Nitrogen (N2) and Carbon Monoxide (CO). Methane is the valuable component under the aspect of using biogas fuel. |
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