Question

Iodine turns blue-black on reacting

Answer 1

iodine commonly known as tinture iodine
when we drop this solution in STARCH
and then by reaction the leaf contact containing strtch will change into blue black colour

Answer 2

Heya!!


Iodine turns the starch solution blue - black on reacting.

This reaction is used to test the presence of starch in leaves, potatoes etc.

Hope it helps!!

Thank you ☺️