Hamad Environmental Chemistry 16/10/2021 A. KMnO4 B. Alums C. Ozone D. All Related Mcqs: Acid present in acid rain may be__________________?A. H2SO4 B. HNO3 C. both A and B D. none... Which of the following air pollutants is more dangerous for ozone layer ?A. CFC B. CO2 C. CO D. Oxides of nitrogen... Which of the following is not a heavy industry ?A. iron B. fertilizer C. paper D. none... Requirement of macronutrient per acre of the land is_________________?A. 5 to 200 kg B. 20-200 kg C. 200-400 kg D. 30-400 kg... Which of the following is not a secondary pollutant_________________?A. ozone B. carbonic acid C. sulphuric acid D. carbon dioxide...
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