Which process(es) is/are involved in the turning of starch iodide paper blue-blac...

Question

Which process(es) is/are involved in the turning of starch iodide paper blue-black by chlorine gas?

Options

A) chlorine attacks the starch to give the blue-black color

B) chlorine attacks the iodide ion to give the blue-black color

C) chlorine oxidizes the iodide ion to produce iodine which attacks the starch to give the blue-black color

D) iodine attacks the starch to give the blue-black color