Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the
A. hardness in water
B. turbidity in water
C. dissolved oxygen in water
D. residual chlorine in water
Answer:A
Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the
A. hardness in water B. turbidity in water C. dissolved oxygen in water D. residual chlorine in water