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ISSB Initial Tests - Academic Test - Chemistry - Fundamental of Chemistry - Quiz 1

Practice 10 high yield MCQs on Chemistry from Chapter Fundamental of Chemistry for Academic Test. After submission, get instant results with correct answers and detailed explanations. This is Quiz 1 of the series.

1. The number of moles of CO₂ which contain 8.0 g of oxygen is:



2. The volume occupied by 2.8 g of N₂ at STP is:



3. 1 amu (atomic mass unit) is equal to:



4. The total number of protons in 10 g of CaCO₃ is:



5. The term "mole" was introduced by:



6. 1 g of H₂ contains molecules:



7. The number of atoms in 1 mole of O₂ is:



8. The empirical formula of a compound is CH₂O. Its molecular mass is 180. The molecular formula is:



9. The mass of 1 mole of electrons is approximately:



10. Which of the following has the greatest number of molecules?



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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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