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Question 16 Which of the following compounds is used for water softening ? (a) Ca3(PO4)2 (b) Na3PO4 (c)Na6P6O18 (d) Na2HPO4 |
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Answer» Question 16 Which of the following compounds is used for water softening ? (a) Ca3(PO4)2 (b) Na3PO4 (c)Na6P6O18 (d) Na2HPO4 |
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