In the experiment to show that 'carbon dioxide is given out during respiration a rise in the water level in the delivery tube is observed. It is due to : (A) An increase in the water content of the beaker as water is one of the products of respiration.(B) Creation of partial vacuum in the conical flask.
(C) Absorption of CO, by KOH placed in conical flook_
(20) Both (B) and (C)
CBSE Class X Science VSA (1 Mark)
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(D) Vacuum creates and KOH absorbs CO2.
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(D) Vacuum creates and KOH absorbs CO2.
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