This experimental set up is used to prove essentiality of which of the following requirements of photosynthesis?

Q.) This experimental set up is used to prove
essentiality of which of the following
requirements of photosynthesis?


(a) Chlorophyll (b) Oxygen
(c) Carbon dioxide (d) Sunlight


Ans. (c) Carbon dioxide


Explanation: The experimental set up
shown is used to prove that carbon dioxide is
essential for photosynthesis as the set up has
been made air tight and KOH has been placed
to absorb all the carbon dioxide present in the
bell jar, thereby creating absence of carbon
dioxide gas.

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