McqMate
| Q. |
Which fuel causes least pollution? |
| A. | diesel |
| B. | coal |
| C. | lpg (liquid petroleum gas) |
| D. | hydrogen gas |
| Answer» D. hydrogen gas | |
| Explanation: pollution is mainly caused by the presence of co2 in air. since after combustion of h2 it only gives water vapour which is less polluting. | |
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