S Block Elements Question 222
Question: The reagent commonly used to determine hardness of water titrimetrically is
[AIIMS 2003]
Options:
A) Oxalic acid
B) Disodium salt of EDTA
C) Sodium citrate
D) Sodium thiosulphate
Show Answer
Answer:
Correct Answer: B
Solution:
It form calcium and magnesium complex with EDTA salt.