Q. 245.0( 2 Votes )

The following experiment was set-up to show that a gas is given out during respiration. But there was no rise in the level of water. Why did it happen?


Answer :

The KOH (potassium hydroxide) test tube placed within the conical flask absorbs the moisture, oxygen, O2 in the flask and released CO2 due to which the level of water rises in the tube due to partial vacuum created by absorbed CO2. An equal volume of water rises. But here, there was no rise in the level of water maybe because of experimental errors like the cork might not have been properly air-tight or maybe the KOH prepared was not fresh or maybe the germinating seeds were not kept moist etc.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Genius Quiz | Alphabet Test and Alphanumeric Series49 mins
Alphabet Test46 mins
ScoreUp - A Year Long Foundation Course for Class 1024 mins
Champ Quiz | Alphabet Test47 mins
What is a DNA Test ??38 mins
Sample Paper Discussion43 mins
Quiz | Test Your Speed and AccuracyFREE Class
GTSE Sample Paper & Imp Q. Discussion28 mins
GTSE Sample Paper & Imp Q. Discussion35 mins
What is a DNA Test38 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses