Question

3.
5 L of water contains 11.1 mg of CaCl, and 12 mg
of MgSO . Find out its degree of hardness in
ppm).
(2) 10
(3) 4
(1) 20
(4) 15
plz tell with full solution:)​

Answer 1

1. 10
2. 4
3. 20
4. 15
5. L of water contains 11.1 mg of CaCl,and 12 mg

of MgSo . Find out its degree of hardness in