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Question
Fill in the blank:
The sample of hard water which lathers with soap after boiling and filtration contains _____.
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Solution
The sample of hard water which lathers with soap after boiling and filtration contains calcium bicarbonate.
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RELATED QUESTIONS
Match the statements in column A with that in column B.
| Column A | Column B |
| (a) deliquescent substance | (1) sodium bicarbonate |
| (b) hygroscopic substance | (2) magnesium chloride |
| (c) efflorestance substance | (3) conc. sulphuric acid |
| (d) substance causing temporary hardness | (4) washing soda |
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