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प्रश्न
Give reason:
A burning candle stops burning if covered with a glass tumbler
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उत्तर
Oxygen is necessary for combustion when covered with a glass tumbler supply of oxygen stops.
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संबंधित प्रश्न
“Air is a mixture”. Support this statement citing at least three evidences.
Write ‘True’ or ‘False’ in front of following statement.
The catalyst used in laboratory preparation of oxygen gas from hydrogen peroxide gas is magnesium oxide
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Name the following:
The main, rare (inert) gas present in air.
Name the following:
The component of air which does not support combustion.
Compare the three main components of air i.e. nitrogen, oxygen and carbon dioxide with reference to their density and solubility, nature and reactivity.
Classify the following.
( Dog, Cat, coconut tree, monkey, brinjal plant, papaya plant)
| Things which give out oxygen | Things which give out carbon dioxide |
How do the roots of land plants get oxygen for breathing?
Tri oxygen molecule is known as ______.
