Chemistry · JEE

Important Questions: Chemistry for JEE

2266+ syllabus-aligned questions available

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The most important Chemistry questions for JEE cover conceptual traps, standard results, and numerical patterns from Some Basic Concepts in Chemistry, Atomic Structure, Chemical Bonding and Molecular Structure, Chemical Thermodynamics, and more. Goodmarks provides 2260+ high-yield MCQs with full solutions.

Focus on what matters most. These important Chemistry questions cover high-weightage concepts from Some Basic Concepts in Chemistry, Atomic Structure, Chemical Bonding and Molecular Structure, Chemical Thermodynamics, and more — the topics JEE repeats every year.

Chemistry units covered

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Q1ChemistryUnit 6: Equilibrium

The reaction of the acid and the produces carbon dioxide, which causes dough and batters to rise.

Q2ChemistryUnit 6: Equilibrium

If the pressure of

N_{2} / H_{2}

mixture in a closed apparatus is 100 atm and

20 \%

of the mixture reacts then the pressure at the same temperature would be:

Q3ChemistryUnit 2: Atomic Structure

The energy of an electron in the ground state of

\boldsymbol{H}

atom is

-\mathbf{1 3 . 6 e V}

The negative sign indicates that:

Q4ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Due to diagonal relationship between Be and

A l

Q5ChemistryUnit 6: Equilibrium

A catalyst is a substance which:

Q6ChemistryUnit 16: Organic Compounds Containing Halogens

The release of chlorofluorocarbons by the use of refrigerators, air conditioners, deodorants, etc., are destroying the

_{\text {一一一一一一一一 }}

layer of the atmosphere.

Q7ChemistryUnit 7: Redox Reactions and Electrochemistry

\boldsymbol{H}_{2} \boldsymbol{O}_{2}

is:

Q8ChemistryUnit 10: p-Block Elements

Silk, honey and lac are

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Frequently asked questions

What makes a 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 Chemistry are high-weightage?

Key areas include Some Basic Concepts in Chemistry, Atomic Structure, Chemical Bonding and Molecular Structure, Chemical Thermodynamics, 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.