Question
Question: The reagent commonly used to determine hardness of water titrimetrically is....
The reagent commonly used to determine hardness of water titrimetrically is.
A
Oxalic acid
B
Disodium salt of EDTA
C
Sodium citrate
D
Sodium thiosulphate
Answer
Oxalic acid
Explanation
Solution
LiOH < NaOH < KOH < RbOH
Down the group basic character increases