In half leaf experiment, to maintain CO2-free conditions in the test tube where the upper half of the leaf is inserted, the chemical used to absorb CO2 is
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a
Potassium hydroxide
b
Calcium hydroxide
c
Sodium hydroxide
d
Calcium chloride
answer is A.
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Detailed Solution
KOH absorbs CO2 and makes the air of the test tube free of CO2.
In half leaf experiment, to maintain CO2-free conditions in the test tube where the upper half of the leaf is inserted, the chemical used to absorb CO2 is