Question

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with the help of an experiment demonstrate that carbon dioxide is given out during breathing.​

Answer 1

Answer:

Suspend a small test tube containing 20% potassium hydroxide. Dip the free end of the bent tube in a beaker of coloured water. ... Carbon dioxide released during the aerobic respiration is absorbed by potassium hydroxide and creates a vacuum and causes rise of water in the bent tube.

Answer 2

Answer:

hope it helps you follow

Suspend a small test tube containing 20% potassium hydroxide. Dip the free end of the bent tube in a beaker of coloured water. ... Carbon dioxide released during the aerobic respiration is absorbed by potassium hydroxide and creates a vacuum and causes rise of water in the bent tube.

Explanation:

Carbon dioxide is released during respiration by plants. This can be proved by an experiment by taking germinating seeds in a plant in a flask. KOH solution is kept inside the flask with the help of a thread.In another beaker coloured water is kept. The rise in the level of the water is observed.