JAMB Chemistry 2003 Question 37

Question 37

Halogens

Chlorine gas turns a damp starch-iodide paper

  1. A.pink
  2. B.colourless
  3. C.red
  4. D.dark blue
Show the answer and explanation

Answer: D (dark blue)

Explanation

Chlorine displaces iodine from the iodide, and iodine turns starch dark blue.