Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationChemical analysis of organic compounds
MediumIn Lassaigne's extract of an organic compound,both nitrogen and sulphur are present,which gives blood red colour with $Fe^{3+}$ due to the formation of-
- A$[Fe(SCN)]^{2+}$
- B$Fe_4[Fe(CN)_6]_3 \cdot xH_2O$
- C$NaSCN$
- D$[Fe(CN)_5NOS]^{4-}$
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Similar Questions
Match column $-I$ and column $-II$ with the correct relation:
Column $-I$ Column $-II$ $(i).$ Prussian blue $(a).$ Presence of phosphorus $(ii).$ Yellow precipitate $(b).$ Presence of sulphur $(iii).$ Purple solution $(c).$ Presence of nitrogen $(iv).$ Black precipitate $(d).$ Presence of chlorine
| Column $-I$ | Column $-II$ |
|---|---|
| $(i).$ Prussian blue | $(a).$ Presence of phosphorus |
| $(ii).$ Yellow precipitate | $(b).$ Presence of sulphur |
| $(iii).$ Purple solution | $(c).$ Presence of nitrogen |
| $(iv).$ Black precipitate | $(d).$ Presence of chlorine |
Easy
View SolutionWhat happens when an organic compound is fused with sodium metal?
Easy
View SolutionThe volume of nitrogen is measured by which apparatus in the Dumas method?
Easy
View SolutionWhich of the following substances gives a red color when its $Lassaigne's$ extract is treated with alkali and ferric chloride?
Easy
View SolutionAssertion: Potassium can be used in the Lassaigne test.
Reason: Potassium reacts vigorously.
Reason: Potassium reacts vigorously.
MediumAIIMS 1997
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