Question

it is possible to test the hardness of water using detergents? give reason for your answer​

Answer 1

Detergent forms lather with hard and soft water both, while a soap forms lather with soft water only. Thus, it is not possible to check if the water is hard or not by using a detergent.

Answer 2

Answer:

yes it is possible to test the hardness of water using detergents because if the hard water is mixed with the detergent then it forms a sticky scum or precipitate which is insoluble un water. Moreover if it freely lathers with the detergent then it is soft water..

hope it helped you