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प्रश्न
Name the following:
The product formed when phosphorus burns in oxygen.
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उत्तर
Phosphorus pentoxide (P2O5).
संबंधित प्रश्न
Fill in the blanks
Plants and animals maintain the balance of carbon ___________and _________ in the air.
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
Name the following:
The active component of air which supports combustion and is used up in burning
Name the following:
The component of air which is present more in industrial areas.
Name the following:
A process which removes carbon dioxide from the air.
State four different properties of a compound and a mixture.
Analogy
Photosynthesis : _____ :: Respiration : Oxygen
Which gas is essential for burning?
Air also contains a small amount of carbon-di-oxide, water vapour, and some other gases like argon,
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Carbon dioxide
