Question

as directed.
(09)
(1) How would you check the presence of starch in leaves?
(2) Nehabhabhi takes two types of riber, natural and synthetic. She does not know
which one is natural fiber and which is synthetic fiber. Which activity you will suggest
to identify the fibers?
(3) You are given three solutions A, B and C acid, base and neutral respectively. It is
not possible to identify them just by looking how will you identify the type of solution​

Answer 1

Explanation:

Iodine solution is used to test leaves for the presence of starch. You need to: 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)