how will you show the presence of carbondioxide
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Aim: To show the presence of Carbon dioxide in air
Apparatus: Lime water is placed in a test tube which is provided by two outlets A and B
Procedure: Air is sucked slowly from the outlet B.
Observation: The lime water in the test tube turns milky.
Conclusion: On sucking air from outlet B, the atmospheric air is allowed to enter through the inlet A which further passes in the lime water. Thus, the atmospheric air contains Carbon dioxide which reacts with lime water and turns it milky.
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