Permanent hard water may be softened by passing it through
sodium silicate
sodium bicarbonate
sodium hexametaphosphate
sodium phosphate
Correct answer is C
No explanation has been provided for this answer.
Personality Test
Numerical Reasoning Questions and Answers
Puzzles Questions and Answers
Data Interpretation Questions and Answers
Situational Judgement Questions and Answers
Spatial Reasoning Questions and Answers
Logical Reasoning Questions and Answers
Microsoft Office Questions and Answers
Abstract Reasoning Questions and Answers
Quantitative Reasoning Questions and Answers
Nigeria General Knowledge Questions and Answers
Verbal Reasoning Questions and Answers
Typing Speed and Accuracy Test
See all →