Chemistry 10th Class English Medium Online Test With Answers

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Chemistry 10th Class English Medium Online Test

Sr. # Questions Answers Choice
1 A strange bitter smell noticed near photocopiers is of: SO2 H2S O2 O3
2 ozone depletion (i.e O3--------------> O2 + O) occurs in: lower stratosphere middle stratosphere upper stratosphere troposphere
3 Almost all aircrafts fly in: troposphere mesosphere stratosphere themosphere
4 The major constituents of troposphere are: carbon dioxide and argon nitrogen and oxygen argon and oxygen carbon dioxide and oxygen
5 Mesophere extend forms 50 km to: 50 km 12 km 60 km 85 km
6 In the troposphere (lowest layer), the temperature decreases form 17°C to; -58°C -93°C -61°C -49°C
7 How much amount of sunlight reaches up to earth and absorbed: 26% 32% 50% 18%
8 Percentage of nitrogen in atmosphere is: 20.94% 78.09% 0.93% 0.03%
9 Atmosphere is divided into; 3 regions 4 regions 5 regions 6 regions
10 Methyl butanoate smells like; a pine apple an apple an orange a lemon
11 Enzymes are chemically; lipids carbohydrates proteins vitamins
12 Dextrose is a crystallized: sucrose lactose glucose fructose
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