Chemistry, asked by iqrahabeeb0704, 9 months ago

Water becomes useless for drinking purpose if the fluoride concentration exceeds
(A) 10 ppm
(B) 5 ppm
(C) 3 ppm
(D) 20 ppm

Answers

Answered by anishkrishnan

0

Answer:

Water becomes useless when fluoride concentration exceeds 3 ppm.

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