Environmental Chemistry MCQs and Answers with explanation 1. Air is polluted by a) toxic materials b) hydrocarbons c) harmful gases d) all of above ... Answer is d) Explanation: Any substance that is present in air and has adverse effect on a part of atmosphere is known as air pollutant. Examples of air pollutant are toxic material, toxic gases and hydrocarbon. Hydrocarbons are considered as major source of air pollution due to their incomplete combustion. show Answer 2. Which of the following gas in not pollutant? a) SO 2 b) CO c) CO 2 d) NO 2 ... Answer is c) Explanation: CO 2 is not considered as air pollutant as human exhale it and plants inhale it and utilize it for photosynthesis. Although, its excessive amount causes global warming, yet it is not known as air pollutant. show Answer 3. Oxides of sulfur and nitrogen react with oxygen to form a) bases b) acids c) sa...
We provide all level's students with simple and easy notes on chemistry. These notes include chemistry notes according to FBISE syllabus and solved exercises.