Class 11Chemistry3 Organic Chemistry: Purification and CharacterisationChemical analysis of organic compounds
EasyIn the detection test of nitrogen,the Prussian blue colour is due to which compound?
- A$Fe_{4}[Fe(CN)_{6}]_{3}$
- B$Fe_{3}[Fe(CN)_{6}]_{2}$
- C$Fe_{2}[Fe(CN)_{6}]$
- D$Fe[Fe(CN)_{6}]$
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Similar Questions
How is the silver halide obtained from an organic compound distinguished?
Easy
View SolutionMatch List-$I$ with List-$II$:
List-$I$ (Test/Reagents/Observation) List-$II$ (Species detected) $(a)$ Lassaigne's Test $(i)$ Carbon $(b)$ $Cu(II)$ oxide $(ii)$ Sulphur $(c)$ Silver nitrate $(iii)$ $N, S, P,$ and halogen $(d)$ The sodium fusion extract gives black precipitate with acetic acid and lead acetate $(iv)$ Halogen specifically
The correct match is:
| List-$I$ (Test/Reagents/Observation) | List-$II$ (Species detected) |
| $(a)$ Lassaigne's Test | $(i)$ Carbon |
| $(b)$ $Cu(II)$ oxide | $(ii)$ Sulphur |
| $(c)$ Silver nitrate | $(iii)$ $N, S, P,$ and halogen |
| $(d)$ The sodium fusion extract gives black precipitate with acetic acid and lead acetate | $(iv)$ Halogen specifically |
The correct match is:
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 SolutionDiscuss the chemistry of Lassaigne's test.
Difficult
View SolutionThe Lassaigne's extract is boiled with dilute $HNO_3$ before testing for halogens because,
DifficultAIIMS 2012
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