question_answer

DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 A plant was kept in a dark room for a week. Its leaves were tested with iodine solution. The test was negative. To test with iodine solution which of the following is not a step that is necessary?

A) Boil the leaf first in water and then in alcohol

B) Wash the bleached leaf

C) Heat the leaf on a hot flame

D) Add few drops of iodine solution to the bleached leaf.