Q1ChemistryUnit 13: Purification and Characterisation of Organic Compounds
Qualitative analysis of nitrogen is done by which test/ method?
Chemistry · JEE
Qualitative analysis: Detection of nitrogen, sulphur, phosphorus and halogens Previous Year Questions for JEE
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Syllabus context
Part of Purification and Characterisation of Organic Compounds in JEE Main Chemistry.
- Purification: Crystallization, sublimation, distillation, differential extraction and chromatography principles and their applications
- Qualitative analysis: Detection of nitrogen, sulphur, phosphorus and halogens
- Quantitative analysis (basic principles only): Estimation of carbon, hydrogen, nitrogen, halogens, sulphur and phosphorus
- Calculations of empirical formulae and molecular formulae, numerical problems in organic quantitative analysis
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Q2ChemistryUnit 13: Purification and Characterisation of Organic Compounds
In oxidation test of sulphur, sulphur gets oxidised to:
Q3ChemistryUnit 13: Purification and Characterisation of Organic Compounds
Which of the following compounds may give blood red colouration while performing Lassaigne's test for nitrogen? This question has multiple correct options
Q4ChemistryUnit 13: Purification and Characterisation of Organic Compounds
Copper wire test of halogens in known
as:
Q5ChemistryUnit 13: Purification and Characterisation of Organic Compounds
The covalent compound which does not give a positive test in Lassaigne's test is:
Q6ChemistryUnit 13: Purification and Characterisation of Organic Compounds
The presence of nitrogen in the organic compound is tested as:
Q7ChemistryUnit 13: Purification and Characterisation of Organic Compounds
During sodium extract preparation for Lassaigne's test both and present
in an organic compound change to:
Q8ChemistryUnit 13: Purification and Characterisation of Organic Compounds
In the detection test of carbon and
hydrogen with cupric oxide, hydrogen is oxidized to
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