Punjab 12th Class Chemistry Chapter 16 Environmental Chemistry Mcqs Test Online Punjab 12th Class Chemistry Chapter 16 Environmental Chemistry Mcqs Test Online 1234567891011121314151617181920Show paginator Hide paginator Question 1 of 20Chemistry 1. Which of following gas is not pollutant? 1.NO₂ 2.SO₂ 3.CO 4.CO₂ Question 1 of 20Question 2 of 20 2. The branch of chemistry which deals with the transformation of natural raw materials is called: 1.Industrial chemistry 2.Biochemistry 3.Analytical chemistry 4.Biotechnology Question 2 of 20Question 3 of 20 3. Thickness of ozone is: 1.20-25KM 2.25-28KM 3.20-30KM 4.30-32KM Question 3 of 20Question 4 of 20 4. Fungicides are the pesticides which 1.Kill insects 2.Kill herbs 3.Control the growth of fungus 4.Kill plants Question 4 of 20Question 5 of 20 5. Oxides of sulfur and nitrogen react with oxygen to form: 1.Acids 2.All of above 3.Salts 4.Bases Question 5 of 20Question 6 of 20 6. When chlorine is passed through water then the disinfection is done due to the production? 1.OCl 2.HCl 3.HClO₄ 4.HOCl Question 6 of 20Question 7 of 20 7. Low valued products produced in large quantities are called: 1.Fine Chemicals2.Commodity Chemicals 3.Performance Chemicals 4.Specialty Chemicals Question 7 of 20Question 8 of 20 8. Ozone is destroyed by: 1.NO₂ 2.Chlorofluorocarbons 3.None of these 4.SO₂ Question 8 of 20Question 9 of 20 9. High valued products produced in low volumes are called: 1.Performance Chemicals 2.Fine Chemicals3.Specialty Chemicals 4.Commodity Chemicals Question 9 of 20Question 10 of 20 10. What does BIC stands for: 1.Bio – inorganic cosmetics 2.Basic iodine and carbon 3.Biological inorganic chemicals 4.Basic inorganic chemicals Question 10 of 20Question 11 of 20 11. An example of BOC is: 1.Ethylene 2.Butyne 3.Asters 4.Ethanol Question 11 of 20Question 12 of 20 12. Peroxyacetylnitrate (PAN) is an irritant to human beings and it affects: 1.Eyes 2.Stomach 3.Ears 4.Nose Question 12 of 20Question 13 of 20 13. High valued pure chemicals are known as: 1.None 2.Commodity 3.Ethylene 4.Fine Chemicals Question 13 of 20Question 14 of 20 14. In leather industry: 1.Chromium (III) is used 2.Aluminum is used3.Chromium (IV) is used 4.Nickel is used Question 14 of 20Question 15 of 20 15. Air is polluted by: 1.Harmful gases2.Toxic materials 3.Hydrocarbons 4.All of above Question 15 of 20Question 16 of 20 16. Oxidizing smog consists of high concentration of: 1.SO₂ 2.Ozone 3.Cl₂ 4.NO₂ Question 16 of 20Question 17 of 20 17. What do you mean by BOC. 1.Biological organic chemicals 2.Basic organic carbons 3.Bio – organo chemicals 4.Basic organic chemicals Question 17 of 20Question 18 of 20 18. The Ecosystem is the smaller unit of: 1.Biosphere 2.Lithosphere 3.Hydrosphere 4.Atmosphere Question 18 of 20Question 19 of 20 19. Water is purified: 1.Disinfection 2.Coagulation 3.All of above 4.Aeration Question 19 of 20Question 20 of 20 20. An example of BIC: 1.Butene 2.Ethylene 3.Sulphuric 4.Propane Question 20 of 20 Loading... Test By Subject Punjab Test By Topics 12th Class Chemistry You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.