Advertisements
Advertisements
प्रश्न
Draw a neat labelled diagram for the following experiment.
To prepare oxygen in the laboratory from hydrogen peroxide and a catalyst.
आकृती
Advertisements
उत्तर
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
What do you observe when Carbon dioxide gas is passed through lime water.
State two similarities and two differences between respiration and burning.
Name two air pollutants which cause acid rain.
Name two air pollutants which cause global warming.
Fill in the blank
Air is a ______ of gases
Name the following.
Inert gases in the air
Answer in your own words.
What are the various constituents of air? Write their uses.
Explain the term ‘air pollution’, with reference to air quality. State the sources of a few main pollutants.
Match the following:
| 1. | Layer of air | a. | Hand fan |
| 2. | Electrical energy | b. | 21% |
| 3. | Nitrogen | c. | Windmill |
| 4. | Oxygen | d. | Atmosphere |
| 5. | Palm Trees | e. | 78% |
About 78% of the volume of air is ______.
