Question

Why is KOH kept in a test tube inside the conical flask while doing-experiment of respiration of seeds.

Answer 1

Potassium Hydroxide is kept because it absorbs all the carbon dioxide that is excelled by the plant while the process of respiration in the plants...
Actually the experiment is to show the importance of carbon dioxide during the process of respiration. ...

Answer 2

KOH absorbs CO2. this is why it is kept inside the flask while conducting a respiration experiment so as to remove all the CO2 from the flask and prove that plants release CO2 during respiration.