1. Civil Engineering
  2. Environmental Engineering
  3. For portable water the permissible pH va...
Q.

For portable water the permissible pH value is

A. 11 -- 14
B. 7 - 8.5
C. 4.5 - 7
D. 9 -- 11
E. 1 - 4.5
Answer» B. 7 - 8.5
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