Class10th Chemistry Chapter 6


Total Marks: 12

1. Building are being damaged by acid rain because it attacks:
Calcium sulphate Calcium nitrate Calcium carbonate Calcium oxalate
2. Just above the Earth’s surface is:
Mesosphere Troposphere Stratosphere Thermosphere
3. Depending upon temperature variation, atmosphere is divided into how many regions?
one two three four
4. :it as us for beneficial is Ozone)
Absorbs infrared radiations Absorbs ultraviolet radiations Absorbs chlorofluorocarbons Absorbs air pollutants
5. The height of thermosphere layer above the Earth\'s surface is:
0 - 12 km 12 - 15 km 50- 85km 85 - 120 km
6. Above the troposphere the layer lies is called:
Thermosphere Strosphere Mesosphere Hardosphere
7. Ozone layer absorbs high energy radiations from the Sun called:
Infrared radiations Ultra visible reactions Visible radiations Ultraviolet radiations
8. Which compounds are the major cause of ozone layer depletion?
HFCs CNG CFCs LPG
9. Acid rain affects the aquatic life by clogging fish gills because of:
Lead metal Chromium metal Mercury metal Aluminium
10. The pH of normal rain water is:
5.6 to 7 6 to 7 7 to 9 5.0 to 5.5
11. .malaria like diseases infections ___________ layer ozone Decreased)
decreases increases reduces limits
12. Ozone is present throughout the:
environment universe air atmosphere