America today leave white screen and nilo fashion used for an experiment to prove that chlorophyll is
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The presence of starch is determined with the help of the iodine test. The starch turns into an intense blue-black color by reacting with an aqueous solution of the triiodide anion. The color develops due to the production of an intermolecular charge-transfer complex.
In the given case, just before the starch test pale yellow color is observed, while after the starch test, blue-black color formation takes place.
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
In the presence of sunlight, the above reaction takes place. Oxygen is obtained from water, as dissociation of the water molecule leads to the production of hydrogen, and oxygen that is a by-product.
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