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Why is it necessary to remove sulphur from petroleum products ?A. To reduce the emission of sulphur dioxide in exhaust fumesB. To increase efficency of automobiles enginesC. To use sulphur removed from petroleum for commercial purposesD. To increase the life span of engine silencers |
Answer» Correct Answer - A By removing sulphur from petrol and diesel, the emission of `SO_(2)` can be reduced in exhaust.` SO_(2)` is a very harmful air pollutant. It can damage the vegetation by causing chlorosis. It can cause acid rain (by forming `H_(2)SO_(3)` and `H_(2)SO_(4))`, damaging buildings and plants. In human beings it causes irritation in eyes and damage to respiratory system (e.g., bronchitis). |
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