Chemistry-(general)
NEET Chemistry (general) MCQ Question
Type: MCQ-diagram based-Hard-Class 11
A diagram shows the process of sodium fusion test for detecting nitrogen in an organic compound. If the resulting extract is treated with iron(II) sulfate and concentrated sulfuric acid, what compound is confirmed by the formation of Prussian blue color?
A
Sodium hexacyanoferrate(II)
B
Sodium hexacyanoferrate(III)
C
Iron(III) hexacyanoferrate(II)
D
Iron(II) hexacyanoferrate(III)
Correct Answer
Option C
Detailed Explanation
The formation of Prussian blue color is due to the presence of Iron(III) hexacyanoferrate(II), which confirms the presence of nitrogen. This compound is formed when iron(II) ions are oxidized to iron(III) ions, which then react with sodium hexacyanoferrate(II).
Found an issue with this question?