Assertion :The group is determined by making a solution of the salt in water and adding ammonium chloride and ammonium hydroxide. Reason: Ammonium chloride is added to ensure low concentration of hydroxide ions.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion The 3rd analytical group of cations are determined by making a solution of the salt in water and adding ammoniumchloride and ammoniumhydroxide.
Also, ammoniumchloride is added to ensure low concentration of hydroxide ions.