Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationChemical analysis of organic compounds
MediumDuring the halogen test,the sodium fusion extract is boiled with concentrated $HNO_3$ to ... .
- Aremove unreacted sodium
- Bdecompose cyanide or sulphide of sodium
- Cextract halogen from organic compound
- Dmaintain the $pH$ of the extract
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Similar Questions
Which compound is responsible for the formation of a blue precipitate when ferric ions react with a Lassaigne's extract or potassium ferrocyanide solution?
Medium
View SolutionWhich of the following nitrogen-containing compounds does not give Lassaigne's test?
In the Lassaigne sodium fusion test,$N$ and $S$ of an organic compound are converted into:
Match the organic compounds in column $I$ with the Lassaigne's test results in column $II$ appropriately.
Column $I$ Column $II$ $A$. Aniline $i$. Red colour with $FeCl_3$ $B$. Benzene sulfonic acid $ii$. Violet colour with sodium nitroprusside $C$. Thiourea $iii$. Blue colour with hot and acidic solution of $FeSO_4$
| Column $I$ | Column $II$ |
|---|---|
| $A$. Aniline | $i$. Red colour with $FeCl_3$ |
| $B$. Benzene sulfonic acid | $ii$. Violet colour with sodium nitroprusside |
| $C$. Thiourea | $iii$. Blue colour with hot and acidic solution of $FeSO_4$ |
DifficultJEE MAIN 2015
View SolutionDuring the fusion of an organic compound with sodium metal,the nitrogen present in the organic compound is converted into:
DifficultKCET 2018
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