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प्रश्न
The constituent of air that supports combustion is _____.
पर्याय
Nitrogen
water vapour
Oxygen
water vapour
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उत्तर
The constituent of air that supports combustion is Oxygen.
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संबंधित प्रश्न
Answer the question put against the following constituents of air:
Nitrogen : Explain its significance for plants and animals.
Answer the question put against the following constituents of air :
Oxygen : What is the percentage proportion of oxygen in air ? Why is oxygen called active air.
Suggest five measures to prevent air pollution.
Statement given below is incorrect. Write the correct statement :
Carbon dioxide gas allows the earth to radiate out heat rapidly.
Statement given below is incorrect. Write the correct statement :
Symbiotic bacteria are present in nodules of cereal plants such as wheat.
Name three different appliances where air is utilized.
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
State four different properties of a compound and a mixture.
_____ gas turns lime water milky.
Carbon dioxide with water changes
