Sulphur dioxide gas can be formed by:
Burning coal.
Burning paper.
Burning wood.
None of these.
Fossil fuels like coal and oil contain sulphur, hence, they release sulphur dioxide upon burning.
When the burning of coal is done in a limited environment of oxygen, the exhaust produces poisonous gas Carbon dioxide.
Which of the following is more environment friendly ? (a) burning of diesel (b) burning of coal (c) burning of charcoal (d) burning of wood