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प्रश्न
Given below is a set of six experimental set-ups (A-F), kept in this state for about 24 hours.
What is the purpose of keeping a test-tube containing limewater in each flask?
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उत्तर
Limewater absorbs CO2 present in the flasks. If CO2 is produced, limewater turns milky.
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संबंधित प्रश्न
The following diagram refers to an apparatus which is used to demonstrate a physiological process:
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In which tube/tubes the limewater will turn milky?
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