NEET Chemistry Functional Group Tests Assertion Reason Question
Assertion (A): Addition of potassium nitrite to an aqueous solution containing cobalt ions results in the formation of a yellow precipitate.
Reason (R): Potassium hexanitritocobaltate (III) is formed when cobalt ions react with potassium nitrite in an acidic medium.
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 NCERT context states that the reaction of cobalt ions with potassium nitrite in an acidic medium forms potassium hexanitritocobaltate (III), a yellow precipitate, thus explaining the assertion.
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