Question

Q19.Name the chemical used for Starch test and mention the colour change
observed in this test.​

Answer 1

Answer:

The chemical is iodine

Explanation:

This is a physical test. 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.