InterviewSolution
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InterviewSolution
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Assertion (A) Calgon is used for removing `CA^(2+) and Mg^(2+)` ions from hard water. Reason (R ) Calgon forms precipitates with `Ca^(2+) and Mg^(2+)`A. Both A and R are true and R is the correct explanation of AB. Both A and R are true but R is not a correct explanation of AC. A is true but R is falesD. Both A and R are fales. |
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Answer» Correct Answer - D Both assertion (A) and reason ( R) are not true. Correct Assertion : Calgon mask the properties of `Ca^(2+)` and `Mg^(2+)` ions present in water without removing them as ppt. Correct Reason. Calgon forms soluble complexes with `Ca^(2+)` and `Mg^(2+)` in which properties of these ions are masked. |
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