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Question

The following diagram refers to an apparatus which is used to demonstrate a physiological process: (a)What is the purpose of keeping potassium hydroxide solution in the test tubes X and Y?

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Solution

Potassium hydroxide is used to detect the presence of carbon dioxide in the test tubes X and Y by creating vacuum.

It absorbs the carbon dioxide generated after respiration and a vacuum space is created and hence the occurrence of respiration is detected.

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Q. STRUCTURED/APPLICATION/SKILL TYPE
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