Question

Give reasons if iodine solution is added to a starch solution in which some saliva is mixed, we do not get blue black colour

Answer 1

when we add iodine solution to starch solution ,the solution changes into blue or black colour but if it doesn't change then there is absence of starch in the solution

Answer 2

Answer:

Explanation:

If the iodine is mixed up with the starch solution in which the saliva is mixed the solution will change its colour to the blue-black colour but if the color does not change the color then the solution is wrong of the quantity of the starch is less than the actual quantity and then if the starch is not there then the color will not be the blue-black.