Question

why is chlorophyll extracted from leaf before testing it dor presence of starch

Answer 1

Hey friend here is your answer

Due to the presence of green pigment called chlorophyll the leaves look green in colour.but before testing a leaf for presence of starch it is decoloured i,e the chlorophyll is removed by boiling in water .

This is done to observe clear presence of starch .as clear observations can't be made if chlorophyll is present

Hope it helps you
Pls mark brainliest

Answer 2

Why is chlorophyll extracted from leaf before testing it for the presence of starch?

• Greenish colour of chlorophyll can give a wrong indication of positive starch test.

Therefore, chlorophyll is removed by boiling in alcohol & then placing it in hot water before testing for starch.