10th class Chemistry chapter 14 online mcq test with answers for matric part 2 chemistry unit 14(The Atmosphere)

Chemistry 10th Class English Medium Unit 14 Online Test

Sr. #	Questions	Answers Choice
1	Depending upon temperature variation, atmosphere ins divided into how many regions?	1 2 3 4
2	75% atmosphere mass lies in how many kilometers.	11 km 30 km 50 km 85 km
3	The layer above troposphere extend upto 50 kilometers called.	Mesosphere Hydrosphere Stratosphere Thermosphere
4	Our planet earth consists of ____________ natural Spheres.	1 4 6 8
5	A strange bitter smell noticed near photo copier machine is of.	H<sub>2</sub>S SO<sub>2</sub> O<sub>2</sub> O<sub>3</sub>
6	The sphere just above the Earth's surface is.	Mescosphere Stratosphere Thermosphere Troposphere
7	Which gas is not present in atmosphere?	Nitrogen Oxygen Helium Carbon dioxide
8	What percentage of nitrogen and oxygen is in the atmosphere.	69% 79% 9% 89%
9	About 99% of atmospheric mass lies in.	35 km 30 km 15 km 16 km
10	The solid particle deposit on the filter paper during filtratin is called.	Precipitates Residue Crystals All of them
11	Thermosphere lies beyond.	Stratosphere Troposphere Mesosphere Biosphere
12	Which is not a part of flue gas?	Furans Dioxins HCl H<sub>2</sub>SO<sub>4</sub>