Question

In order to prove that carbon-dioxide is liberated during respiration, Vicky put some KOH pallets along with germinating seeds.What would be the result?{CCE}

Answer 1

KOH solution absorbs the carbon dioxide in the bottle. So, the result can't be seen.

Answer 2

In order to prove the liberation of carbon dioxide during respiration experiment, KOH pallets will prove it this way:

KOH is highly basic in nature whereas as carbon dioxide is acidic oxide. When during this experiment, carbon dioxide is produced the KOH pallets react with it and form salt and water.

The formation of salt and water explains the liberation of carbon dioxide in this reaction.