Question

True or False – if false give the correct statement

1. Oxygen is the poor conductor of heat and electricity.

2. Nitrogen is about two times more soluble in water then oxygen.

3. Nitrogen is an essential element present in proteins and nucleic acids which are the building blocks of living things.

4. Non-metal + Nitrogen    Nitrogen compound.

5. Solid form of CO₂ is called as dry ice which undergoes condensation.

6. Acid rain inhibits germination and growth of seedlings.

7. An average increase in the temperature of the atmosphere is called as acid rain.

8. Rain water is actually the purest form of water.

9. The increase in the levels of greenhouse gases results in the gradual increase of temperature of the earth’s surface.

10. Nitrogen gas is so cold that moisture in the air condenses on it, creating a dense fog.

Answer 1

1. True

2. False 

Correct statement: Oxygen is about two times more soluble in water than Nitrogen.

3. True

4. True

5. False 

Correct statement: Solid form of CO₂ is called as dry ice which undergoes sublimation.

6. True

7. False 

Correct statement: An average increase in the temperature of the atmosphere is called as global warming.

8. True

9. True

10. False 

Correct statement: Solid CO₂ gas is so cold that moisture in the air condenses on it, creating a dense fog.