Permanent hardness of water can be removed by adding
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Verified answer
Answer:
washing soda sodium carbonate
2 method is by adding sodium zeolite ..
it can also be removed by adding EDTA(ethanediamine tetraacetate)
another is ion exchange method