10th Class Chemistry Chapter Wise Online MCQ Test With Answers PDF English Medium

Chemistry 10th Class English Medium Online Test

Sr. #	Questions	Answers Choice
1	The percentage by volume of nitrogen in dry gas is.	78.09% 20.94% 0.93% 0.03%
2	The envelope of different gases around the earth is called.	Atmosphere Brosphere Lithosphere Hydrosphere
3	Atmosphere has regions.	One Two Three Four
4	Earth has natural systems.	One Two Three Four
5	Carbon monoxide is harmful to us because.	It paralyses the lungs. It damages lungs tissues. It reduces oxygen carrying ability of haemoglobin It makes the blood coagulate.
6	Global warming is because of.	Absorption of infrared radiation emitted by earth surface. Absorption of infrared radiation coming from sun. Absorption of infrared Ultraviolet coming from the sun. Emission of ultraviolet radiation from the earth's surface.
7	The process by which atmospheric nitrogen is turned into nitrates in the soil is called.	Nitration Fixing Oxidation Reduction
8	Which one of these pollutants are not found in car exhaust fumes?	CO<sub>2</sub> O<sub>3</sub> NO<sub>2</sub> SO<sub>2</sub>
9	Effects of ozone depletion are following except the one.	Increases infectious diseases Increases crops production Can cause skin cancer Can cause climatic changes.
10	Which gas protects the Earth's surface from ultraviolet radiations?	CO<sub>2</sub> CO N<sub>2</sub> O<sub>3</sub>
11	Global warming causes rising of the sea level. The cause of global warming is.	CO<sub>2</sub> gas. SO<sub>2</sub>gas. NO<sub>2</sub>gases. O<sub>3</sub>gas.
12	Infrared radiations emitted by the Earth are absorbed by.	CO<sub>2</sub> and H<sub>2</sub>O N<sub>2</sub> and O<sub>2</sub> CO<sub>2</sub>and N<sub>2</sub> O<sub>2</sub>and CO<sub>2</sub>

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