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Chemistry · JEE

Concept of atom, molecule, element and compound Previous Year Questions for JEE

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Goodmarks offers 8+ JEE-style PYQs for Concept of atom, molecule, element and compound with detailed solutions. While official past papers rotate yearly, our bank covers the same concepts, difficulty, and question formats tested in JEE Chemistry.

Previous year questions are the fastest way to understand how Concept of atom, molecule, element and compound is tested in JEE. Practise 8+ exam-pattern MCQs modelled on JEE Main and Advanced, with full solutions for every question.

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Q1ChemistryUnit 1: Some Basic Concepts in Chemistry
Assertion Element can form different compound. Reason Any substance that contains only one kind of an atom is known as an element.
Q2ChemistryUnit 1: Some Basic Concepts in Chemistry
What are the materials which contain at least two pure substances and show the properties of their constituents called?
Q3ChemistryUnit 1: Some Basic Concepts in Chemistry
4 protons, 5 neutrons, and 4 electrons are there in an atom of beryllium. Its mass number is:
Q4ChemistryUnit 1: Some Basic Concepts in Chemistry
What is the ratio of the number of neutrons present in potassium and magnesium atoms with mass number 39 and 24 respectively?
Q5ChemistryUnit 1: Some Basic Concepts in Chemistry
J J Thomson Model could not able to explain the following?
Q6ChemistryUnit 1: Some Basic Concepts in Chemistry
Who was the discoverer of neutrons???
Q7ChemistryUnit 1: Some Basic Concepts in Chemistry
Assertion The specific charge of canal rays is not constant. Reason The mass of ion varies with speed.
Q8ChemistryUnit 1: Some Basic Concepts in Chemistry
Protons and neutrons are also called

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Why practise PYQs for Concept of atom, molecule, element and compound?

PYQs reveal recurring concepts, common traps, and the difficulty level JEE expects. Solving them builds exam temperament and time management.

Does Goodmarks have actual JEE past papers?

Our bank includes exam-style MCQs aligned with JEE Main Chemistry syllabus for Concept of atom, molecule, element and compound, covering the same topics as previous year papers.

How should I use PYQs for Some Basic Concepts in Chemistry?

Solve timed sets, review every explanation, note weak subtopics, then revisit with focused practice on Goodmarks.

Are PYQ solutions step-by-step?

Yes. Every question includes the correct answer and a detailed explanation showing the reasoning.

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