Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationChemical analysis of organic compounds
EasyThe gases respectively absorbed by alkaline pyrogallol and oil of cinnamon are:
- A$O_{3}, CH_{4}$
- B$O_{2}, O_{3}$
- C$SO_{2}, CH_{4}$
- D$N_{2}O, O_{3}$
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Similar Questions
Explain the reason for the fusion of an organic compound with metallic sodium for testing nitrogen,sulphur,and halogens.
Medium
View SolutionWhich one of the following sets of elements can be detected using sodium fusion extract?
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 SolutionHow is the purity of a compound determined?
Medium
View SolutionAssertion : During the test for nitrogen with Lassaigne's extract,on adding $FeCl_3$ solution,sometimes a blood-red coloration is obtained.
Reason : Sulphur is also present along with nitrogen in the organic compound.
Reason : Sulphur is also present along with nitrogen in the organic compound.
MediumAIIMS 2001
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