Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationChemical analysis of organic compounds
EasyIn the Lassaigne's test for the detection of sulfur,which substance is responsible for the formation of black precipitates?
- A$Na_2S$
- B$(CH_3COO)_2Pb$
- C$PbS$
- D$CH_3COOH$
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Similar Questions
What happens to the halogen when $AgNO_3$ is added to the Lassaigne solution acidified with $HNO_3$?
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View SolutionWhy is it necessary to use acetic acid and not sulphuric acid for acidification of sodium extract for testing sulphur by lead acetate test?
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View SolutionLassaigne's test is used for the detection of which of the following?
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View SolutionMatch column $-I$ and column $-II$ with the correct relation:
Column $-I$ Column $-II$ $(i).$ Lassaigne's test $(a).$ By sodium peroxide $(ii).$ Test for nitrogen $(b).$ Acidify with acetic acid $(iii).$ Test for sulphur $(c).$ Acidify with conc. sulphuric acid $(iv).$ Test for phosphorus $(d).$ Fusion with sodium
| Column $-I$ | Column $-II$ |
|---|---|
| $(i).$ Lassaigne's test | $(a).$ By sodium peroxide |
| $(ii).$ Test for nitrogen | $(b).$ Acidify with acetic acid |
| $(iii).$ Test for sulphur | $(c).$ Acidify with conc. sulphuric acid |
| $(iv).$ Test for phosphorus | $(d).$ Fusion with sodium |
Easy
View SolutionThe volume of nitrogen is measured by which apparatus in the Dumas method?
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