Question

Consider the following:

1. Oxides of Hydrogen

2. Oxides of Nitrogen

3. Oxides of Sulphur

Which of the above causes/cause acid rain?

• A. 1 and 2 only
• B. 2 and 3 only
• C. 3 only
• D. 1, 2 and 3

Answer 1

The correct option is B

2 and 3 only

Acid rain is caused by emissions of sulphur dioxide and nitrogen oxides which react with the water molecules in the atmosphere to produce corresponding sulphuric and nitric acids which fall along with rain droplets on ground.