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Chemistry · JEE

Important Questions: Principles Related to Practical Chemistry for JEE

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The most important Principles Related to Practical Chemistry questions for JEE cover conceptual traps, standard results, and numerical patterns from Detection of extra elements (Nitrogen, sulphur, halogens) in organic compounds, Detection of functional groups: hydroxyl (alcoholic and phenolic), carbonyl (aldehyde and ketones), carboxyl and amino groups in organic compounds, The chemistry involved in the preparation of Inorganic compounds: Mohr's salt, potash alum, The chemistry involved in the preparation of Organic compounds: Acetanilide, p-nitro acetanilide, aniline yellow, iodoform, and more. Goodmarks provides 3+ high-yield MCQs with full solutions.

Focus on what matters most. These important Principles Related to Practical Chemistry questions cover high-weightage concepts from Detection of extra elements (Nitrogen, sulphur, halogens) in organic compounds, Detection of functional groups: hydroxyl (alcoholic and phenolic), carbonyl (aldehyde and ketones), carboxyl and amino groups in organic compounds, The chemistry involved in the preparation of Inorganic compounds: Mohr's salt, potash alum, The chemistry involved in the preparation of Organic compounds: Acetanilide, p-nitro acetanilide, aniline yellow, iodoform, and more — the topics JEE repeats every year.

Subtopics in Principles Related to Practical Chemistry

  • Detection of extra elements (Nitrogen, sulphur, halogens) in organic compounds
  • Detection of functional groups: hydroxyl (alcoholic and phenolic), carbonyl (aldehyde and ketones), carboxyl and amino groups in organic compounds
  • The chemistry involved in the preparation of Inorganic compounds: Mohr's salt, potash alum
  • The chemistry involved in the preparation of Organic compounds: Acetanilide, p-nitro acetanilide, aniline yellow, iodoform
  • The chemistry involved in the titrimetric exercises: acids, bases and the use of indicators, oxalic-acid vs KMnO4, Mohr's salt vs KMnO4
  • Chemical principles involved in the qualitative salt analysis Cations: Pb2+, Cu2+, Al3+, Fe3+, Zn2+, Ni2+, Ca2+, Ba2+, Mg2+, NH4+
  • Chemical principles involved in the qualitative salt analysis Anions: CO3(2-), S2-, SO4(2-), NO3-, NO2-, Cl-, Br-, I- (Insoluble salts excluded)
  • Chemical principles involved in experiments: Enthalpy of solution of CuSO4, Enthalpy of neutralization of strong acid and strong base, Preparation of lyophilic and lyophobic sols, Kinetic study of the reaction of iodide ions with hydrogen peroxide at room temperature

Free sample questions

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Q1ChemistryUnit 20: Principles Related to Practical Chemistry
In iodine charge transfer test the color of ether compound formed is:
Q2ChemistryUnit 20: Principles Related to Practical Chemistry
In the titration of ferrous ammonium sulphate and potassium dichromate, the external indicator used is:
Q3ChemistryUnit 20: Principles Related to Practical Chemistry
Freshly prepared precipitate sometimes gets converted to colloidal solution by:

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Frequently asked questions

What makes a Principles Related to Practical Chemistry question "important" for JEE?

Important questions test core concepts that appear frequently across JEE Main and Advanced papers — definitions, standard formulas, and classic problem types.

Which subtopics in Principles Related to Practical Chemistry are high-weightage?

Key areas include Detection of extra elements (Nitrogen, sulphur, halogens) in organic compounds, Detection of functional groups: hydroxyl (alcoholic and phenolic), carbonyl (aldehyde and ketones), carboxyl and amino groups in organic compounds, The chemistry involved in the preparation of Inorganic compounds: Mohr's salt, potash alum, The chemistry involved in the preparation of Organic compounds: Acetanilide, p-nitro acetanilide, aniline yellow, iodoform, and more. Prioritise these before moving to edge cases.

How many important questions should I revise?

Revise 30–50 important MCQs per unit in the last month before JEE. Focus on questions you got wrong at least once.

Can I practise only important questions on Goodmarks?

Pro users can filter by unit and subtopic to target high-yield areas. Free users can attempt sample questions on this page.

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