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Chlorine turn...

Question

Chlorine turns moist starch iodide paper blue black. Why?

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Solution

Chlorine turns moist starch iodide paper blue-black because the iodide ions on the paper are oxidised to iodine and the starch react to it to give blue-black compound.

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Q. Assertion :When moist starch iodide paper comes in contact with chlorine, it turns blue back. Reason: Free iodine is liberated from potassium iodide.

Q. Moist starch iodide paper is turned black by chlorine gas .

Is the above statement true?

Q. A substance that turns moist strach iodide paper blue is:

Q. Which of the following gases turns starch iodide paper blue?

Q. State your observation in each of the following cases:
When moist starch iodide paper is introduced into chlorine gas.

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