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 Concepts for JEE
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Concept explainer
Qualitative analysis: Detection of nitrogen, sulphur, phosphorus and halogens is a core JEE Main Chemistry subtopic under Purification and Characterisation of Organic Compounds. Master the definitions, standard results, and typical MCQ patterns tested in JEE Main and Advanced.
Key points
- Understand the definition and scope of Qualitative analysis: Detection of nitrogen, sulphur, phosphorus and halogens in the JEE syllabus
- Memorise key formulas and standard results linked to Qualitative analysis: Detection of nitrogen, sulphur, phosphorus and halogens
- Practise 20–40 syllabus-aligned MCQs with step-by-step solutions
JEE tips
- Revise Qualitative analysis: Detection of nitrogen, sulphur, phosphorus and halogens with a one-page formula sheet before attempting mixed tests
- After each practice set, log mistakes specific to Qualitative analysis: Detection of nitrogen, sulphur, phosphorus and halogens and reattempt after 48 hours
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Students often rush Qualitative analysis: Detection of nitrogen, sulphur, phosphorus and halogens questions without checking units, sign conventions, or boundary conditions — always verify assumptions before calculating.
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
Free sample questions
Attempt 8 free MCQs for Qualitative analysis: Detection of nitrogen, sulphur, phosphorus and halogens. Unlock 2+ more with Pro.
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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