Question

How will you test a leaf for starch? Mention any precautions you.​

Answer 1

Answer:

First we will heat a plant leaf in boiling water for 30 seconds (this stops its chemical reactions) heat it in boiling ethanol for a few minutes (this removes most of its colour) wash with water and spread onto a white tile. add iodine solution from a dropper. If it turns blue black it shows that it contains starch.

Explanation:

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Answer 2

Explanation:

We will heat it in alcohol . We will have to take cars of alcohol because it is very flammable and can catch fire very easily