A water sample is found to have 384 ppm of 2 4 SO . What will be the degree of hardness of water sample? (A) 200 ppm (B) 300 ppm (C) 400 ppm (D) 100 ppm

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Question

A water sample is found to have 384 ppm of 2 4 SO . What will be the degree of hardness of water sample?

(A) 200 ppm
(B) 300 ppm
(C) 400 ppm
(D) 100 ppm

Prashant Kotian · Accepted Answer

Correct answer:

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