Question
Question: Hard water when passed through ion exchange resin containing, RCOOH groups, becomes free from :...
Hard water when passed through ion exchange resin containing, RCOOH groups, becomes free from :
A
Cl– ions
B
SO42– ions
C
H3O+ ions
D
Ca2+ ions
Answer
Ca2+ ions
Explanation
Solution
Hard water when passed through resin containing R–COOH groups it becomes free from Ca+ ions.