MCQ & Online Test – Atoms and Molecules – NCERT Class 9 Science Chapter 3

5/5 - (2 votes)
MCQ Atoms and Molecules - One Atomic Mass
One Atomic Mass

Online Test | MCQ Atoms and Molecules | NCERT Class 9 Science Chapter 3 | CBSE Syllabus

Every student of class 9 of NCERT/CBSE syllabus may take part this online test of NCERT Class 9 Science Chapter 3 MCQ Atoms and Molecules and verify his score to check preparedness

#1. In an experiment to verify the law of conservation of mass in a chemical reaction, weighing of flask with its content is done carefully

#2. Which of the following contains maximum number of molecule

#3. Which represents 360 g of water - a) 2 moles of H2O, b) 20 moles of H2O, c) 6.022x1023 molecules of H2O, d) 1.2044x1025 molecules of H2O?

#4. The chemical symbol for sodium is

#5. Mass of one atom of oxygen is

#6. The chemical symbol of nitrogen gas

#7. 3.42 g of sucrose (C12H22O11) is dissolved in 18 gram of water in a beaker. The number of oxygen atoms in the solution

#8. Given that- CH4(16 g) + 2O2(64 g) ⇒ CO2(X g) + H2O(36 g). Find the value of X.

#9. The formula unit mass of calcium chloride is

#10. Which of the following would weigh highest

#11. Which statement is correct

#12. Which one of the following represents a correct chemical formula?

#13. The atomic mass of Cl is

#14. Which statement is not true?

#15. Which of the following has maximum no. of atoms

#16. A change in the physical state can be brought about

#17. Which element is used as standard atomic mass scale



5/5 - (2 votes)
Congratulations. You scored above 60%.

5/5 - (2 votes)
Better luck next time. You scored below 60%.

Thank you for your participation

To Be Continued