why leaf is diped in hot water and then alcohol and then to iodine.. ?can we dip staright to iodine solution
Hi, Shahzin
The expeiment is conducted to test the presence of starch in the leaf. In this experimentthe leaf is dipped in the hot water for about one minute so as to get rid off the waterproof layer so that the leaf becomes soft. Then this leaf is soaked in boiling alcohol in a water bath to remove chlorophyll. Finally iodine is added to test the presence of starch.
Hope you have got the answer.
Cheers !!!!!!