Which of the following methods cannot be used to remove parmanent hardness from water? A. Addition of washing soda B. addition of caustic soda C. Permutit method D. adding alum to water?
4 Answers Available
Asked by De crest on 4th July, 2020
Ask Your Own Question
Quick Questions
See More Academic Questions Questions
Answers ({{ comment_count }})
Please wait...
Modal title
Report
Block User
{{ feedback_modal_data.title }}