Question

Explain the following-



Name the reagent used for testing the presence of starch?​

Answer 1

Answer:

Iodine is the reagent used to test the presence of starch in leaf.

Answer 2

Answer:

A chemical test for starch is to add iodine solution (yellow/brown) and look for a colour change. In the presence of starch, iodine turns a blue/black colour. It is possible to distinguish starch from glucose (and other carbohydrates) using this iodine solution test.

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