Which process(es) is/are involved in the turning of starch iodide paper blue-black by chlorine gas?
- chlorine attacks the starch to give the blue-black color
- chlorine attacks the iodide ion to give the blue-black color
-
chlorine oxidizes the iodide ion to produce iodine which attacks the starch to give the blue-black color
- iodine attacks the starch to give the blue-black color
The correct answer is: C
Explanation
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