A) oxalic acid
B) disodium salt of DTA
C) sodium citrate
D) sodium thiosulphate
Correct Answer: B
Solution :
The hardness of water is estimated by simple titration of ethylene diamine tetra acetate (EDTA) solution. EDTA forms stable complexes with the metal ions present in the hard water since stability constants of calcium and magnesium complexes of EDTA are different, even the selective estimation of these ions is possible.
You need to login to perform this action.
You will be redirected in
3 sec
