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Physical Properties of Nonmetals

A substance t...

Question

A substance that turns moist strach iodide paper blue is:

A

chlorine

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B

sulphur dioxide

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C

ammonia

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D

hydrogen sulphide

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Solution

The correct option is A chlorine
Chlorine gas turns moist strach iodide paper blue.

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Q. Chlorine turns moist starch iodide paper blue black. Why?

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 .

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

Q. When moist starch iodide paper is introduced near ______ gas, its colour changes to blue-black.

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