A. Hard water contains sulphate
B. They form insoluble calcium soaps which precipitate
C. They attract back the removed dirt
D. None of these
Correct Answer: They form insoluble calcium soaps which precipitate ✔
Last Updated: February 12, 2019
A. Hard water contains sulphate
B. They form insoluble calcium soaps which precipitate
C. They attract back the removed dirt
D. None of these
Correct Answer: They form insoluble calcium soaps which precipitate ✔
Last Updated: February 12, 2019