question_answer 27)

  Why is it necessary to remove sulphur from petroleum products? (a) To reduce the emission of sulphur dioxide in exhaust fumes (b) To increase efficiency of automobiles engines (c) To use sulphur removed from petroleum for commercial purposes (d) To increase the life span of engine silencers

Answer:

                  (a) Removal of sulphur from petroleum product (diesel) reduces the emission of oxides of sulphur like SO2and SO3 in the exhaust fumes.