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Online Practice: Mole concept, molar mass, percentage composition, empirical and molecular formulae for JEE

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Goodmarks provides free online JEE practice for Mole concept, molar mass, percentage composition, empirical and molecular formulae with 50+ MCQs, instant answer checking, and full solutions. Sign up to unlock the complete question bank and topic-wise filters.

Sharpen your chemistry preparation with interactive online practice for Mole concept, molar mass, percentage composition, empirical and molecular formulae. Goodmarks offers 50+ JEE-style MCQs mapped to the official syllabus, each with detailed explanations so you learn from every attempt.

Syllabus context

Part of Some Basic Concepts in Chemistry in JEE Main Chemistry.

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Attempt 8 free MCQs for Mole concept, molar mass, percentage composition, empirical and molecular formulae. Unlock 49+ more with Pro.

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Q1ChemistryUnit 1: Some Basic Concepts in Chemistry
What is molecular formula of oleum?
Q2ChemistryUnit 1: Some Basic Concepts in Chemistry
The volume of 0.5 moles of a gas at 273 K\mathrm{K} and 380mm380 \mathrm{mm} pressure is:
Q3ChemistryUnit 1: Some Basic Concepts in Chemistry
The number of significant figures in N0=6.022×1023N_{0}=6.022 \times 10^{23} i.e., Avogadro's number, is :
Q4ChemistryUnit 1: Some Basic Concepts in Chemistry
380mL380 \mathrm{mL} of a gas at 270C,800mm27^{0} \mathrm{C}, 800 \mathrm{mm} of Hg\mathrm{Hg} weight 0.455g.0.455 \mathrm{g} . the mol.wt.of gas is:
Q5ChemistryUnit 1: Some Basic Concepts in Chemistry
Which of the following contains maximum number of atoms?
Q6ChemistryUnit 1: Some Basic Concepts in Chemistry
A metal M of atomic weight 54.94 g has a density of 7.42 g/cc. The apparent volume occupied by one atom of the metal will be:
Q7ChemistryUnit 1: Some Basic Concepts in Chemistry
If repeated measurements give values close to one another, the number is:
Q8ChemistryUnit 1: Some Basic Concepts in Chemistry
The number of moles of sodium oxide in 620 g of it is:

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How do I practice Mole concept, molar mass, percentage composition, empirical and molecular formulae online for JEE?

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Goodmarks currently has 57+ JEE-aligned MCQs for Mole concept, molar mass, percentage composition, empirical and molecular formulae, with more added regularly.

Is this aligned with the JEE Main syllabus?

Yes. All Chemistry questions on Goodmarks are organised by official JEE Main units and subtopics, including Mole concept, molar mass, percentage composition, empirical and molecular formulae.

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