Question

Why koh solution is kept in the test tube inside the airtight conical flask?

Answer 1

Answer:

solution kept in the test-tube inside the air-tight conical flask absorbs the evolved carbon dioxide released by germinating seeds; thereby creating a partial vacuum in the conical flask. So, an equal volume of water rises up in the tube.

Answer 2

║⊕ANSWER⊕║

It absorbs the evolved carbon dioxide released by germinating seeds; thereby creating a partial vacuum in the conical flask