Chemistry-Functional Group Tests
NEET Chemistry Functional Group Tests Assertion Reason Question
Type: Assertion Reason-assertion-Hard-Class 12
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.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false.
Correct Answer
Option A
Detailed Explanation
The yellow precipitate of potassium hexanitritocobaltate(III) confirms cobalt ions, as described in the NCERT context.
Found an issue with this question?