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The figure given below represents an exp...

The figure given below represents an experiment to demonstrate a particular aspect of photosynthesis. The alphabet "A" represents a certain condition inside the flask

What is the aim of the experiment

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(i) The aim of the experiment is to show that `CO_2` is necessary for photosynthesis.
(ii) The leaf inside the flask does not give blue-black colour when tested with iodine.
(iii) NaOH (sodium hydroxide) can be used as an alternative for KOH.
(iv) Leaf B does not turn blue-black while leaf C turned blue-black at the end of the starch test.
(v) Destarching is the process in which, the plant is kept in darkness to remove starch from the leaves & green parts of plants.
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