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How many unpaired electrons are prese...

How many unpaired electrons are present in p -orbital of oxygen ?

A

0

B

1

C

2

D

3

Text Solution

Verified by Experts

The correct Answer is:
C
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KUMAR PRAKASHAN-STRUCTURE OF ATOM-Section -C(MCQs asked in Competitive Exam)
  1. Which type of spectra obtained if electron transists from M - ...

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  2. what changes occurs in energy of Bohr's orbit ?

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  3. How many unpaired electrons are present in p -orbital of oxygen ...

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  4. Which series of lines obtained in ultraviolet region in hydrogen...

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  5. In hydrogen atom for which change higher energy required ?

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  6. give electron configuration of Fe^(+3) in its ground state .

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  7. Which are isoelectronic from the following

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  8. If atomic number is (z=26) then given number of 3d electrons .

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  9. the four quantum number of the outermost electron of k (z=19) are ...

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  10. From the following which one is heavier particle ?

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  11. When alpha-particles are made incident on a thin metal foil most ...

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  12. In hydrogen atom electron jumps from 3^(rh) to 2^(nd) energy l...

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  13. Wavelength associated with electron motion ….

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  14. What is the ratio of mass of proton and electron ?

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  15. According to Bohr's theory of hydrogen atom which of the followi...

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  16. The electrons identified by quantum numbers n and l, (i) n= 4, l =...

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  17. Assertion (A ) : The 19^(th) electron in potassium atom eneters ...

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  18. Assertion (A ) : The orbital cannot have more than two electron...

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  19. the electron configuration of an element is 1s^(2) 2s^(2) 2p^(...

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  20. Which one is least stable in from following

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