Why is it necessary to remove sulphur from petroleum products?
a. To reduce the emission of sulphur dioxide in exhaust fumes
b. To increase the efficiency of automobiles engines
c. To use sulphur removed from petroleum for commercial purposes
d. To increase the life span of engine silencers
The answer is the option (a) To reduce the emission of sulphur dioxide in exhaust fumes
To lower the amount of sulphur dioxide released in exhaust fumes, sulphur must be eliminated from petroleum products. One of the dangerous air pollutants is sulphur dioxide. Hence, (a) is the correct option.