WAEC - Chemistry (2000 - No. 38)
Which of the following on burning in air contributes to acid rain?
Sulphur
Magnesium
Aluminium
Zinc
Erläuterung
Acid rain is caused by the release of sulphur(iv)oxide and nitrogen oxides (NOx) into the atmosphere, where they react with water, oxygen, and other chemicals to become sulfuric and nitric acid respectively. Sulphur appears in option A, thus it is the correct answer.