Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationChemical analysis of organic compounds
MediumThe Lassaigne's extract is boiled with conc. $HNO_3$ while testing for halogens. By doing so it
- Adecomposes $Na_2S$ and $NaCN$ formed
- Bhelps in the precipitation of $AgCl$
- Cincreases the solubility product of $AgCl$
- Dincreases the concentration of $NO_3^-$ ions
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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 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:
The blue color obtained in the Lassaigne's test is due to the formation of which compound?
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