MCQ Class 11 Chemistry Chapter 2 Structure Of Atom

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MCQ’s For All Chapters – Chemistry Class 11th

1. Atomic number is equal to the number of:

Question 1 of 20

2. The mass number of an atom is equal to:

Question 2 of 20

3. Atoms having the same mass number but different atomic numbers are called:

Question 3 of 20

4. Atoms having the same atomic number but different mass numbers are called:

Question 4 of 20

5. Which isotope of hydrogen contains one proton and one neutron?

Question 5 of 20

6. The Rutherford model could not explain the:

Question 6 of 20

7. Electromagnetic waves can travel through:

Question 7 of 20

8. The SI unit of frequency is:

Question 8 of 20

9. The relationship between speed, frequency, and wavelength of light is:

Question 9 of 20

10. The speed of electromagnetic radiation in vacuum is approximately:

Question 10 of 20

11. According to Planck’s theory, energy is emitted or absorbed in:

Question 11 of 20

12. The energy of one quantum of radiation is given by:

Question 12 of 20

13. The value of Planck’s constant is:

Question 13 of 20

14. The minimum frequency required for the photoelectric effect is called:

Question 14 of 20

15. The number of photoelectrons emitted mainly depends upon the:

Question 15 of 20

16. The kinetic energy of photoelectrons increases with an increase in:

Question 16 of 20

17. The Balmer series of hydrogen spectrum appears in the:

Question 17 of 20

18. According to Bohr’s model, electrons move in:

Question 18 of 20

19. According to de Broglie’s relation, the wavelength of a particle is:

Question 19 of 20

20. According to the Pauli exclusion principle, an orbital can contain a maximum of:

Question 20 of 20


 

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