a student has set up an Apparatus to show that CO2 is released during respiration after about 1 hour he observes no change in the water level in the delivery tube write two possible reasons for the failure of this experiment
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The delivery tube must haven’t been set up properly
The apparatus might not have been made air tight by the student using Vaseline
The apparatus might not have been made air tight by the student using Vaseline
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1. The conical flask is not airtight hence CO2 is leaking from it.
2. As CO2 gas is light and rises up, if the short end of the tube is lowered too low that it comes in contact with the seeds lying under, CO2 will not pass through the tube.
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