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Class 11th Chemistry || Menu
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  • Structure of Atom
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Electronic Configuration of Atoms, Class 11 Chemistry NCERT Solutions

Structure of Atom Q – 2.34, Class 11th Chemistry Learn Free Education
https://youtube.com/watch?v=8HI2AiJxYQQ
Structure of Atom Q – 2.35, Online Chemistry Classes & Videos Class 11th
https://youtube.com/watch?v=dcNgnvWNd8k
Structure of Atom Q – 2.36, Class 11th Online NCERT Chemistry Practice Lessons
https://youtube.com/watch?v=F0WSzixbjFM
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https://youtube.com/watch?v=_reuJX9-pKM
Structure of Atom Q – 2.39, Class 11th Learn Online Education Chemistry
https://youtube.com/watch?v=F1fB8pFKuhU
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https://youtube.com/watch?v=L1yxSQcGLRM
Structure of Atom Q – 2.41, CBSE Class 11th Practice Chemistry Free Videos Lectures
https://youtube.com/watch?v=0cR-AK3MmIw

1. There will be total 20  MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying.

1. Which electronic configuration  violate the Pauli’s exclusion principle?

1616_eleconfig11616_eleconfig31616_atom1616_eleconfig2
 
 
 
 

Question 1 of 20

2. The ground state electron configuration of Fe is:

2
 
 
 
 

Question 2 of 20

3. What is the ground-state electronic configuration of Si?
 
 
 
 

Question 3 of 20

4. If there are three electrons in p-subshell, which one of the following is the correct electronic configuration for these electrons?
 
 
 
 

Question 4 of 20

5. Which one of the following electronic configurations depict an oxygen atom?
 
 
 
 

Question 5 of 20

6. Which electronic configuration represents a violation of Hund’s rule for an atom in its ground state?

1
 
 
 
 

Question 6 of 20

7. The shape of a 2s orbital resembles:
 
 
 
 

Question 7 of 20

8. Which quantum numbers must be the same for the orbitals so that they are designated to be degenerate in a one-electron system (like hydrogen)?
 
 
 
 

Question 8 of 20

9. Which of the following sets of orbitals is arranged in order of increasing energy?
 
 
 
 

Question 9 of 20

10. How many unpaired electrons are there in Ni2+ ( Z = 28)?
 
 
 

Question 10 of 20

11. Which of the following is a possible electronic configuration?
 
 
 
 

Question 11 of 20

12. The Pauli exclusion principle states that:
 
 
 
 

Question 12 of 20

13. The shape of the px orbital is:
 
 
 
 

Question 13 of 20

14. Which of the following would be diamagnetic?
 
 
 
 

Question 14 of 20

15. Which electron configuration denotes an atom in its ground state?
2
 
 
 
 

Question 15 of 20

16. The shape of a 3p orbital resembles:
 
 
 
 

Question 16 of 20

17. Why is the electronic configuration of Cr – [Ar] 4s1 3d5 and not [Ar] 4s2 3d4 as predicted by Aufbau Principle?
 
 
 
 

Question 17 of 20

18. Which of the following electronic configurations is possible?
 
 
 
 

Question 18 of 20

19. Which of the following electronic configurations is impossible?
 
 
 
 

Question 19 of 20

20. As atomic orbitals are filled according to the Aufbau principle, the 6s orbitals are filled immediately after which of the following orbitals?
 
 
 
 

Question 20 of 20

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