NEET2013Chemistry-Organic Chemistry
NEET 2013 Chemistry Detection of Elements MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Nitrogen detection in an organic compound is carried out by Lassaigne's test. The blue colour formed corresponds to which of the following formulae:
A
Fe₄[Fe(CN)₆]₃
B
Fe₃[Fe(CN)₆]₂
C
Fe₂[Fe(CN)₆]₃
D
Fe₄[Fe(CN)₆]₆
Correct Answer
Option B
Detailed Explanation
The blue color in Lassaigne's test is due to the formation of Prussian blue, which has the formula Fe₄[Fe(CN)₆]₃.
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