why do we keep the conical flask airtight?
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cuz it might be containing volatile liquids......
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Answer:
KOH arrangement kept in the test-tube inside the water/air proof conelike cup assimilates the developed carbon dioxide discharged by growing seeds; in this manner making a halfway vacuum in the cone shaped carafe.
In this way, an equivalent volume of water ascends in the cylinder hope it is quite easy to follow and get right answer in a fine manner.
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