Chapter 10: The Atmosphere Chemistry For High School - Grade 10(Chemistry ) Questions and answers for exam Preparation

Question 1. Percentage of neon in the air is

0.0018
0.0019
0.002
0.0021

Explanation:-

Answer: Option A. -> 0.0018
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 2. Solvents used for cleaning electronic circuit boards are

chlorofluorocarbons
carbons
fluorides
grease

Explanation:-

Answer: Option A. -> chlorofluorocarbons
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 3. The atmosphere is divided in to

2 layers
3 layers
1 layer
4 layers

Explanation:-

Answer: Option D. -> 4 layers
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 4. At every 1 km increase in altitude, the air gets about

10 °C cooler
6.5 °C hotter
6.5 °C cooler
20 °C cooler

Explanation:-

Answer: Option C. -> 6.5 °C cooler
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 5. When ozone absorbs UV radiation, the energy is converted in to

light
sound
heat
electricity

Explanation:-

Answer: Option C. -> heat
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 6. Percentage of oxygen in the air is

0.78
0.21
0.0093
0.0004

Explanation:-

Answer: Option B. -> 0.21
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 7. The pH of acid rain is

more than 5.6
less than 5.6
10
7

Explanation:-

Answer: Option B. -> less than 5.6
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 8. The gas responsible for global warming is

oxygen
carbon dioxide
carbon monoxide
oxygen

Explanation:-

Answer: Option B. -> carbon dioxide
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 9. The temperature of the thermosphere is up to

120 °C
1200 °C
1800 °C
1000 °C

Explanation:-

Answer: Option C. -> 1800 °C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 10. Percentage of nitrogen in the air is

0.78
0.21
0.0093
0.0004

Explanation:-

Answer: Option A. -> 0.78
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!