Advertisements
Advertisements
प्रश्न
Tick (√) the most appropriate answer.
A gas which dilutes the activity of oxygen in air is:
विकल्प
carbon dioxide
sulphur dioxide
nitrogen
noble gases
Advertisements
उत्तर
nitrogen
APPEARS IN
संबंधित प्रश्न
Classify Carbon monoxide. Also give a balanced equation to prepare it.
Give two examples of modern fuels.
With the help of a labeled diagram, describe a simple experiment to show the presence of oxygen and nitrogen in air using a piece of white phosphorus.
Why is carbon-dioxide gas used to extinguish fire?
Soda bottle bursts sometimes when it is opened during summer. Why?
Match the following:
| 1. | More industrial cities | a. | dust particles |
| 2. | Coastal areas | b. | Humidity |
| 3. | Rainy season | c. | Carbon dioxide |
| 4. | Windy places | d. | water vapour |
Give the components present in the air with a percentage?
Oxygen is used to oxidize ______.
Observe the picture given in Fig. carefully and answer the following questions.
Why is he putting a cover on his nose?
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Oxygen
