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) Fe3[Fe(CN)6]3

(b) Fe3[Fe(CN)6]2

(c) Fe4[Fe(CN)6]3

(d) Fe4[Fe(CN)6]2

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Solution:

  1. (c) The prussian blue colour is of Fe4[Fe(CN)6]3 ferric ferrocyanide


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