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Chemistry · JEE

Important Questions: Hydrocarbons for JEE

15+ syllabus-aligned questions available

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The most important Hydrocarbons questions for JEE cover conceptual traps, standard results, and numerical patterns from Classification, isomerism, IUPAC nomenclature, general methods of preparation, properties and reactions, Alkanes: Conformations: Sawhorse and Newman projections (of ethane), mechanism of halogenation of alkanes, Alkenes: Geometrical isomerism, mechanism of electrophilic addition, addition of hydrogen, halogens, water, hydrogen halides (Markownikoff's and peroxide effect), Ozonolysis and polymerization, Alkynes: Acidic character, addition of hydrogen, halogens, water and hydrogen halides, polymerization, and more. Goodmarks provides 15+ high-yield MCQs with full solutions.

Focus on what matters most. These important Hydrocarbons questions cover high-weightage concepts from Classification, isomerism, IUPAC nomenclature, general methods of preparation, properties and reactions, Alkanes: Conformations: Sawhorse and Newman projections (of ethane), mechanism of halogenation of alkanes, Alkenes: Geometrical isomerism, mechanism of electrophilic addition, addition of hydrogen, halogens, water, hydrogen halides (Markownikoff's and peroxide effect), Ozonolysis and polymerization, Alkynes: Acidic character, addition of hydrogen, halogens, water and hydrogen halides, polymerization, and more — the topics JEE repeats every year.

Subtopics in Hydrocarbons

  • Classification, isomerism, IUPAC nomenclature, general methods of preparation, properties and reactions
  • Alkanes: Conformations: Sawhorse and Newman projections (of ethane), mechanism of halogenation of alkanes
  • Alkenes: Geometrical isomerism, mechanism of electrophilic addition, addition of hydrogen, halogens, water, hydrogen halides (Markownikoff's and peroxide effect), Ozonolysis and polymerization
  • Alkynes: Acidic character, addition of hydrogen, halogens, water and hydrogen halides, polymerization
  • Aromatic hydrocarbons: Nomenclature, benzene - structure and aromaticity, mechanism of electrophilic substitution, halogenation, nitration
  • Friedel-Craft's alkylation and acylation, directive influence of the functional group in mono-substituted benzene

Free sample questions

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Q1ChemistryUnit 15: Hydrocarbons
Which of the following is used as a substitute of glass?
Q2ChemistryUnit 15: Hydrocarbons
Methyl acetylene is also known as:
Q3ChemistryUnit 15: Hydrocarbons
The reagent X\boldsymbol{X} used for the following reaction is: R−C=CR′+H2⟶XCH′C=CH′R′\mathbf{R}-\mathbf{C}=\mathbf{C R}^{\prime}+\mathbf{H}_{2} \stackrel{\mathbf{X}}{\longrightarrow} \underset{\mathbf{H}^{\prime}}{\mathbf{C}} \mathbf{C}=\mathbf{C}_{\mathbf{H}}^{\prime \mathbf{R}^{\prime}}
Q4ChemistryUnit 15: Hydrocarbons
Which of the following steps is not correct in the mechanism of electrophilic substitution of benzene?
Q5ChemistryUnit 15: Hydrocarbons
Which of the following compounds will not undergo Friedel-Craft reaction easily?
Q6ChemistryUnit 15: Hydrocarbons
Acrylonitrile, butadiene and styrene are a kind of:
Q7ChemistryUnit 15: Hydrocarbons
The polymer used for post operative stitches is:
Q8ChemistryUnit 15: Hydrocarbons
Assertion Boiling point of pentane is higher than 2,2-dimethylpropane. Reason There is steady increase in boiling point with increase in molecular mass.

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Frequently asked questions

What makes a Hydrocarbons 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 Hydrocarbons are high-weightage?

Key areas include Classification, isomerism, IUPAC nomenclature, general methods of preparation, properties and reactions, Alkanes: Conformations: Sawhorse and Newman projections (of ethane), mechanism of halogenation of alkanes, Alkenes: Geometrical isomerism, mechanism of electrophilic addition, addition of hydrogen, halogens, water, hydrogen halides (Markownikoff's and peroxide effect), Ozonolysis and polymerization, Alkynes: Acidic character, addition of hydrogen, halogens, water and hydrogen halides, polymerization, 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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