Hardness of water is mainly due to dissolved salts of:
Correct Answer: Option B — Calcium and magnesium
Explanation:Dissolved calcium and magnesium salts cause most water hardness.
Submitted by: PaperMCQs
Help us keep PaperMCQs accurate. Reports are reviewed by the admin team.
Continue with your PaperMCQs account
Log in or create an account using your email address. Use a separate PaperMCQs password—never enter your Gmail or email-provider password here.