ECAT Chemistry Chemical Bonding Online Test

Chemistry Chemical Bonding MCQS Online Test

ECAT Chemistry Chemical Bonding Chapter Online Test

Total Questions: 187
Time Allowed: 60 Minutes
Total Marks: 187
How to Attempt Test: Please choose the right Option in MCQ-type question.
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ECAT Chemistry Chemical Bonding Test

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Chemistry

1. If atomic numbers of nickel and copper are 28 and 29 respectively. Which of the following does the electronic configuration 1s² 2s² 2p⁶3s²3p⁶3d⁹ represent?

2. According to VSPER theory, ammonia molecule has --------- shape

3. XeF₄ has shape of

4. Pi bonds are produced by overlapping of

5. Which of the following equation represents the 1st ionization energy of Na?

6. The total number of possible values of magnetic quantum number for the value of l = 3 is

7. The number of d-electrons retained in Fe²⁺ (At. No. of Fe = 26) ions is

8. If the radius of first Bohr orbit be ɜ₀, then the radius of third Bohr orbit would be

9. Which of the following species has lone pair of electrons on central atom?

10. Outermost shells of two elements X and Y have two and six electrons respectively. If they combine, the expected formula of compound will be

11. The shape of the molecule SF₂Cl₂ is

12. A student subtracted 0.00055 from 10.2345678 and reported the result as 10.23401. But his friend told him that result was wrong. What is the correct result?

13. Which one shows high % age of the ionic character?

14. Al become isoelectronic with Ne

15. In BrF₃ molecule, the lone pairs occupy equatorial positions to minimize

16. Molecular orbital picture of N₂ indicates

17. Which of the following hydrides has the lowest boiling point?

18. The boiling point of heavy water is

19. The nature of positive rays depends upon

20. Which of the following is the correct electron – dot formula of CO₂?

 

21. How many sigma and pi bonds are present in tetra cyano ethylene?

22. The relative attraction of the nucleus for the electrons in a chemical bond is called

23. The spectrum of He is expected to be similar to that of

24. A lone pair of electrons in an atom implies

25. The central atom in BrF₅ has _?_ bonding pairs of electrons and _?_ non-bonding pairs of electrons.


 

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