NEET Chemistry Functional Group Tests Assertion Reason Question
Assertion (A): The formation of a yellow precipitate confirms the presence of cobalt ions in a solution.
Reason (R): Potassium hexanitritocobaltate(III) is formed when cobalt sulphide is treated with aqua regia, neutralised with ammonium hydroxide, and acidified with dilute acetic acid.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
The yellow precipitate of potassium hexanitritocobaltate(III) confirms cobalt ions, as described in the NCERT context.
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