Advertisements
Advertisements
Question
List out the uses of carbon dioxide.
Advertisements
Solution
- Carbon dioxide helps plants in photosynthesis.
- It is used in fire extinguishers.
- It is used in refrigerators as dry ice for cooling purpose.
- It is used to make plastics and polymers.
APPEARS IN
RELATED QUESTIONS
Classify Carbon monoxide. Also give a balanced equation to prepare it.
Statement given below is incorrect. Write the correct statement :
Potassium nitrate on strong heating decomposes into potassium nitrite and nitrogen gas.
The diagrams below represents an experiment to show the presence of a component of air.

- State why air is sucked from – outlet ‘B’ and not from outlet “A”
- State why the air is sucked ‘slowly’ from the outlet “B”
- State the observation seen after completion of the experiment.
- State the reason for the above observation seen.
- Name another component which if present in air as a pollutant would have given a similar observation
Tabulate the various components of air, including the components with variable composition.
Match the following
| 1. | Moving Air | Photosynthesis |
| 2. | Layer in which we live | Troposphere |
| 3. | Stratosphere | Wind |
| 4. | Oxygen | Ozone layer |
| 5. | carbon-di-oxide | Combustion |
Aerated water contains
Which gas is essential for burning?
Venus's atmosphere consists of roughly 96 – 97% of ______.
Assertion: Carbon dioxide occurs as carbonates in nature.
Reason: Carbon dioxide can exist as a liquid at atmospheric pressure.
Make sentences using the given set of words.
99%, oxygen, nitrogen, air, together
