Q no. 33..... Plss give explaination
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KOH solution absorbs the CO2 released during respiration of seeds, which creates a partial vacuum in the conical flask, causing the rise in the water level of the U-shaped delivery tube. Rise in the level of water shows that CO2 is released during respiration.
Germinating seeds are used because they use up the oxygen in the flask to respire and release carbon dioxide as a result, which is absorbed by KOH, causing the weight of KOH to increase. Potassium hydroxide is used in this experiment played the role of absorbtion of carbon-dioxide from the plant surrounding.
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