Question

how would you test the presence of starch in leaves?

Answer 1

To test the starch in the leaf first you should apply some iodine to the whole leaf then you should expose the leaf to the sun light you will find black or dark-blue colorvon the leaf which is nothing but starch

Answer 2

you have to apply iodine on whole leaf then expose it in linght then you will see dark blue colouur this starch