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Assertion (A ) : The orbital cannot ...

Assertion (A ) : The orbital cannot have more than two electrons >
Reason (R ) Two electrons in an orbital create opposite magnetic field . The correct choice is

A

both (A ) and (R ) are true (R ) is the correct explantion of (A )

B

both (A) and (R ) are true but (R ) is not the correct explanation of (A )

C

(A ) is true but (R ) is not true

D

(A ) is not true but (R ) is true

Text Solution

Verified by Experts

The correct Answer is:
B
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  4. the electron configuration of an element is 1s^(2) 2s^(2) 2p^(...

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  5. Which one is least stable in from following

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  7. Iso - electronic species are

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  10. Give number of unpaired electron in Ni^(2+)

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  12. If electron is removed from an atom then is energy

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  13. What is the mass of photon having wavelength 3.6 A (h= 6.6 xx 10...

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  14. the nucleus of an element contain 9 protons its valency would be

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  15. Which of the following ion has the highest number of the upaire...

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  16. What is the mass of photon having wavelength 3.6 A (h= 6.6 xx 10...

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  17. The nature of anode rays depends upon

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  18. If magnetic quantum number is -3 then the principle quantum num...

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  19. Which one is not correct ?

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  20. Which of the following has maximum number of unpaired electrons ?

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