Question

a student sets up an apparatus to show CO2 is released during respiration. After one hour there is no change in water level in the delivery tube. Write two possible reasons for the failure of the experiment​

Answer 1

$\huge \mathfrak{hello \: mate}$

Possible reasons for the failure of this experiment:

1) The apparatus might not be airtight. To do so, apply petroleum jelly on the cork.

2) The Potassium Hydroxide (KOH) solution might not be freshly prepared.

Answer 2

Answer:

Explanation:

In fact, the germinating seeds actually respire as well as produce CO2.

It is absorbed by the KOH solution.  

It creates the vacuum  in conical flask.