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Properties of Water

Question

Pure water is natural because :
pH = 7
litmus has no effect
it is free from dissolved salts
pH=0

A

pH=0

B

pH = 7

C

it is free from dissolved salts

D

litmus has no effect

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Solution

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Pure water means water that has nothing in it except $H_{2} O$ (hydrogen and oxygen).

Water from various sources contains dissolved gases, minerals, organic substances.

So water is natural which is free from dissolved salts.

Hence the correct option is C.

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