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The total hardness can be given by _________

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The total hardness can be given by _________

(a) Temporary + permanent hardness

(b) Temporary – permanent hardness

(c) Temporary * permanent hardness

(d) Temporary/permanent hardness

I had been asked this question in an interview for internship.

The query is from Estimation of Hardness in portion Water of Applied Chemistry

1 Answer

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Correct choice is (a) Temporary + permanent hardness

For explanation: The sum of the temporary and permanent hardness of the water gives the total hardness of the water.

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