Question

Iodine can be used to test the presence of:

A) light B) glucose C) chitin D) starch​

Answer 1

Answer:

It is no D that is starch because iodine is used to check the presence of carbohydrates and the starch contains the good amount of carbohydrates.

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Answer 2

Iodine is used to test the presence of starch.

• Option d.
• Explanation:

• Starch is one of the the polysaccharide which is produced by plants by the process of photosynthesis . iodine is originally brownish in colour. However when the starch forms a complex with iodine there is a change in the colour.
• The colour changes into blue black. As a result of this it test the presence of starch to great accuracy.

To know more about the reaction of starch and Iodine,

Why does iodine turn blue-black in the presence of starch? - Brainly.in

https://brainly.in/question/7167038