Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationChemical analysis of organic compounds
MediumLassaigne's test for the detection of nitrogen fails in
- A$NH_2CONHNH_2 \cdot HCl$
- B$NH_2NH_2 \cdot HCl$
- C$NH_2CONH_2$
- D$C_6H_5NHNH_2 \cdot HCl$
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Similar Questions
Match the List-$I$ with List-$II$:
List-$I$ (Reagent) List-$II$ (Functional Group detected) $A$. Sodium bicarbonate solution $I$. Double bond/unsaturation $B$. Neutral ferric chloride $II$. Carboxylic acid $C$. Ceric ammonium nitrate $III$. Phenolic $-OH$ $D$. Alkaline $KMnO_4$ $IV$. Alcoholic $-OH$
Choose the correct answer from the options given below:
| List-$I$ (Reagent) | List-$II$ (Functional Group detected) |
| $A$. Sodium bicarbonate solution | $I$. Double bond/unsaturation |
| $B$. Neutral ferric chloride | $II$. Carboxylic acid |
| $C$. Ceric ammonium nitrate | $III$. Phenolic $-OH$ |
| $D$. Alkaline $KMnO_4$ | $IV$. Alcoholic $-OH$ |
Choose the correct answer from the options given below:
DifficultJEE MAIN 2025
View SolutionAssertion: Potassium can be used in the Lassaigne test.
Reason: Potassium reacts vigorously.
Reason: Potassium reacts vigorously.
MediumAIIMS 1997
View SolutionThe Lassaigne's extract is boiled with dilute $HNO_3$ before testing for halogens because,
DifficultAIIMS 2012
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:
What happens to the halogen when $AgNO_3$ is added to the Lassaigne solution acidified with $HNO_3$?
Easy
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