Chemistry
Grade-6
Easy
Question
The part of the air which acts as active air consists of
- Oxygen
- Nitrogen
- Helium
- Neon
Hint:
According to the given question, active air means highly reactive that readily forms bonds.
The correct answer is: Oxygen
Oxygen is the active air.
Oxygen is a highly reactive gas that readily forms bonds known as oxides with other elements.
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Rita performed an experiment to prove that nitrogen and oxygen are the major constituents of the air. Arrange the following steps involved in this experiment orderly.
(i) Fill the container with some water.
(ii) Mark five marks above the surface of the water on the jar at equal distances shown in the figure below.
(iii) Place an empty, inverted dry glass jar over it.
(iv) Lift the jar, light the candle, and cover it with the inverted glass jar.
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Rita performed an experiment to prove that nitrogen and oxygen are the major constituents of the air. Arrange the following steps involved in this experiment orderly.
(i) Fill the container with some water.
(ii) Mark five marks above the surface of the water on the jar at equal distances shown in the figure below.
(iii) Place an empty, inverted dry glass jar over it.
(iv) Lift the jar, light the candle, and cover it with the inverted glass jar.
(v) Take a glass container and fix a candle at the center of the bottom.
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