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.