6 The addition of sodium nitroprussidesolution to the Lassaigne's solutionproduces violet colouration. Thissignifies the presence of(a) nitrogen(c) chlorine(b) sulphur(d) phosphorusWhen sodium extract of an organiccompound is treated with an acidifiedsolution of FeSO, and FeCI,, redcolouration is produced. This suggeststhat the organic compound contains(a) nitrogen(b) sulphur(c) halogen(d) Both nitrogen and sulphur

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Che addition of sodium nit olution to the Lassaigne" produces violet colourat ignifies the presence of

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter13: Titrations In Analytical Chemistry

Section: Chapter Questions

Problem 13.5QAP

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Question

The addition of sodium nitroprusside
solution to the Lassaigne's solution
produces violet colouration. This
signifies the presence of
(a) nitrogen
(c) chlorine
(b) sulphur
(d) phosphorus
When sodium extract of an organic
compound is treated with an acidified
solution of FeSO, and FeCI,, red
colouration is produced. This suggests
that the organic compound contains
(a) nitrogen
(b) sulphur
(c) halogen
(d) Both nitrogen and sulphur

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