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The anhydrous salt which is used to test...

The anhydrous salt which is used to test water as it changes colour when water is added to it. Sodium chloride , Magnesium sulphate, Zinc chloride, Copper sulphate.

A

Sodium chloride

B

Magnesium sulphate

C

Zinc chloride

D

Copper sulphate.

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The correct Answer is:
D
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