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Question

A student while experimenting on carbon dioxide is given out during respiration, he forgot to take two precautions as given below :

a) To hang a test tube containing KOH solution in the conical flask.
b) To put moist seeds in the conical flask.
State the result of the experiment due to the mistakes caused by him.

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Solution

a) The function of KOH in the respiration reaction is to absorb the carbondioxide released. In absence of this CO2 cannot be absorbed and the experiment is total failure.
b) Moist seeds absorbs water vapour and reduces the amount of water in the experimental flask. Due to release water by leaves during transpiration cause experimental disorder.

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