NEET Chemistry Functional Group Tests MCQ Question
In the qualitative analysis of cobalt ions, how many moles of potassium nitrite (KNO2) are required to form one mole of potassium hexanitritocobaltate(III) (K3[Co(NO2)6])?
7 moles
6 moles
3 moles
2 moles
Correct Answer
Detailed Explanation
According to the chemical reaction provided, CoCl2 reacts with 7 moles of KNO2 to form one mole of K3[Co(NO2)6].
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