In the experimental set-up to show that "the germinating seeds give out the carbon dioxide.
Channel: Doubtnut
Date: 2020-04-12

In the experimental set-up to show that "the germinating seeds give out the carbon dioxide." Answer the following question:   (i) Why do we keep the conical flask airtight?   (ii) Name the substance kept in the small test tube inside the conical flaskt. Write its role.   (iii) Why does water rise in the delivery tube?