9th Class Chemistry English Medium Online Test For Full Book With Answers

9th Class Chemistry English Medium Online Test For Full Book

Sr. # Questions Answers Choice
1 Iron and steel structure are damaged by. Carbon monoxide Sulphur dioxide Methane Carbon dioxide
2 Which one of the following is not an air pollutants? Nitrogen Carbon dioxide Nitrogen oxide Ozone
3 Ozone is beneficial for us as it Absorb infrared radiation. Absorb Ultraviolet radiations. Absorb Chlorofluorocarbons Absorb Air pollulant
4 Acid rain affects the aquatic life by clogging fish gills because of: Lead metal Chromium metal Mercury metal Aluminium metal
5 Building are being damaged by acid rain because it attacks. Calcium sulphate Calcium nitrate Calcium carbonate Calcium oxalate
6 Normally rain water is weakly acidic because of. SO<sub>3</sub> gas. CO<sub>2</sub>gas. SO<sub>2</sub>gas. NO<sub>2</sub>gas.
7 Which one of the following is not a greenhouse Effect? Increasing atmosphere temperature. Increasing food chains increasing flood risks Increasing sea-level
8 The Earth's atmosphere is getting hotter because of. Increasing concentration of CO Increasing concentration of CO<sub>2</sub> Increasing concentration of O<sub>3</sub> Increasing concentration of SO<sub>2</sub>
9 A group of gases that maintains temperature of atmosphere is. Carbon dioxide and water vapours Nitrogen and carbon dioxide Thermosphere Troposphere
10 Just above the Earth's surface is Mesosphere Stratosphere Theremosphere Troposphere
11 About 99% atmosphere's lies within: 30 kilometre 35 kilometre 15kilometre 11 kilometre
12 White viscous fluid present in an egg is. Proten Fats Vitamin Carbohydrates.
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