Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
| Q.1 | Permanent hardness causing salts in water are: | |
| Ans | A. sulphates and chlorides of calcium and manganese | |
| B. sulphates and chlorides of calcium and magnesium | ||
| C. bicarbonates and carbonates of calcium and manganese | ||
| D. bicarbonates and carbonates of calcium and magnesium |
Correct Ans: B
