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Assertion (A) : The electronic configura...

Assertion (A) : The electronic configuration of nitrogen atom is represented as

Reason (R ) : The electronic configuration of the ground state of an atom is the one which has the greatest multiplicity

A

If both (A) and (R) are correct and (R) is the correct reason for (A).

B

If both (A) and (R) are correct but (R) is not the correct explanation for (A).

C

If (A) is correct but (R) is incorrect.

D

If (A) is incorrect but (R) is correct.

Text Solution

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The correct Answer is:
A
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OP TANDON-ATOMIC STRUCTURE -Assertion Reason
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  2. Assertion (A) : The first IE of Be is greater than that of B Reason ...

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  3. Assertion (A) : The electronic configuration of nitrogen atom is repre...

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  4. Statement : For n=3,l may be 0,1 and 2, and m may be 0, +- 1 and +...

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  5. Statement : For n=3,l may be 0,1 and 2, and m may be 0, +- 1 and +...

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  6. Assertion : An orbital cannot have more than two electrons. Reason :...

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  7. Statement-I : The configuration of B atom cannot be 1s^(2) 2s^(3). ...

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  8. Assertion (A) : The ionization energy of N is more than that of O Re...

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  9. Assertion (A) : p orbital is dumb- bell shaped Reason (R ) :Electron...

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  10. Assertion (A) : A spectral line will be seen for 2p(x)-2p(y) transitio...

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  11. Assertion: Ionisation potential of Be (atomic no.4) is less than B (at...

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  12. Statement-I : In Rutherford's gold foil experiment, very few alpha-par...

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  13. Assertion (A) : Limiting line is the balmer series has a wavelength of...

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  14. Assertion (A) : Each electron in an atom has two spin quantum number ...

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  15. Assertion (A) : There are two spherical nodes in 3s orbital Reason (R...

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  16. Assertion (A) : In an atom, the velocity of electron in the higher orb...

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  17. Assertion (A) : If the potential difference applied to an electron is...

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  18. (A) Angular momentum of 1s,2s,3s, etc., all have spherical shape. (R...

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  19. Assertion (A) : The radial probability of 1s electrons first increases...

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  20. Assertion (A) : On increasing the intensity of incident radiation, the...

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