Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationChemical analysis of organic compounds
MediumThe formula of the purple colour formed in $Lassaigne's$ test for sulphur using sodium nitroprusside is ......
- A$Na_4[Fe(CN)_5(NOS)]$
- B$Na[Cr(NH_3)_2(NCS)_4]$
- C$Na_2[Fe(CN)_5(NO)]$
- D$Na_3[Fe(CN)_5(NOS)]$
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Similar Questions
The Lassaigne's extract is boiled with conc. $HNO_3$ while testing for halogens. By doing so it
MediumAIPMT 2011
View SolutionFor testing halogens in an organic compound with $AgNO_{3}$ solution,sodium extract (Lassaigne's test) is acidified with dilute $HNO_{3}$. What will happen if a student acidifies the extract with dilute $H_{2}SO_{4}$ in place of dilute $HNO_{3}$?
Medium
View SolutionThe blue color obtained in the Lassaigne's test is due to the formation of which compound?
Difficult
View SolutionThe compound that does not give a positive test for nitrogen in Lassaigne's test is
Match List-$I$ with List-$II$.
List-$I$ Element detected List-$II$ Reagent used/Product formed $A$. Nitrogen $I$. $Na_2[Fe(CN)_5NO]$ $B$. Sulphur $II$. $AgNO_3$ $C$. Phosphorus $III$. $Fe_4[Fe(CN)_6]_3$ $D$. Halogen $IV$. $(NH_4)_2MoO_4$
Choose the correct answer from the options given below:
| List-$I$ Element detected | List-$II$ Reagent used/Product formed |
| $A$. Nitrogen | $I$. $Na_2[Fe(CN)_5NO]$ |
| $B$. Sulphur | $II$. $AgNO_3$ |
| $C$. Phosphorus | $III$. $Fe_4[Fe(CN)_6]_3$ |
| $D$. Halogen | $IV$. $(NH_4)_2MoO_4$ |
Choose the correct answer from the options given below:
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