Chemistry
Describe simple experiment to show the presence of carbon dioxide in air using a test tube with outlets containing lime water.
Answer
To study the presence of carbon dioxide in air:
Apparatus : A test tube containing lime water with two outlets - A and B.
Procedure : Air is sucked slowly from the outlet B.
Observations : The lime water in the test tube turns milky.
Conclusion : Air contains carbon dioxide which turns lime water milky.
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