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| Q. |
Piped Natural Gas (PNG) is used for – |
| A. | Mining |
| B. | Welding |
| C. | Anaesthesia |
| D. | Cooking |
| Answer» D. Cooking | |
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Explanation: PNG is mainly methane - CH4 with a small percentage of other higher hydrocarbons. The ratio of carbon to hydrogen is least in methane and hence it burns almost completely making it the cleanest fuel. Domestic PNG customers, also known as Residential customers, use has for cooking purpose and also for heating water through gas geysers. |
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