Question

Explain why a lead kept in the light for 24 hours will turn an iodine solution blue-black, whereas a lead kept in the light for 24 hours and then in the dark for 24 hours will have no effect on an iodine solution. (4Marks)

Answer 1

Starch

Step-by-step explanation:

Lead in light has photosynthesized while lead in dark has not. Iodine turns blue black with starch developed by the lead in light.