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Question
A student has set up "CO2 is released during respiration”. After about 1 hour he observes no change in the water level in the delivery tube. Write two possible resons for the failure of the experiment.
Solution
(i) The setup was not air tight
(ii) Geminating seeds were not moist
(iii) One end of U-shaped delivery tube is placed in conical flask and the other end was not immersed in the water of the beaker.
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