Organic Chemistry Some Basic Principles and Techniques - Result Question 50
####56. Nitrogen detection in an organic compound is carried out by Lassaigne’s test. The blue colour formed corresponds to which of the following formulae?
[NEET Kar. 2013]
(a) $Fe_3[Fe(CN)_6]_3$
(b) $Fe_3[Fe(CN)_6]_2$
(c) $Fe_4[Fe(CN)_6]_3$
(d) $Fe_4[Fe(CN)_6]_2$
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Solution:
- (c) The prussian blue colour is of $Fe_4[Fe(CN)_6]_3$ ferric ferrocyanide