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Assertion : Nitrogen has higher first io...

Assertion : Nitrogen has higher first ionization energy than that of oxygen.
Reason : Nitrogen gas has smaller atomic size than that of oxygen.

A

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

B

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

C

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

D

If both (A) and (R) are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
C
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BRILLIANT PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-LEVEL-II (Assertion - Reason Type)
  1. Assertion : The 1^(st) IP of Be is greater than that of B Reason : 2...

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  2. Assertion : Nitrogen has higher first ionization energy than that of o...

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  3. Assertion: lonization potential of K is numerically the same as electr...

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  4. Assertion Both N(2) and NO^(+) are diamagnetic substances. Reason :...

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  5. Assertion : SO(4)^(2-) is estimated as BaSO(4), but not as MgSO(4) R...

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  6. Assertion: The lattice energies depend upon the reciprocals of the dis...

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  7. Assertion: Of all the elements, helium has the highest value of first ...

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  8. Assertion: Na^(+) and Al^(3+) are isoelectronic but the magnitude of ...

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  9. Assertion : F atom has a less negative election gain enthalpy than Cl ...

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  10. Assertion : Noble gases have positive electron gain enthalpy. Reaso...

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  11. Assertion: The highest oxidation state of Os is +8. Reason: Osmium i...

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  12. Assertion : The atomic size generally increases across a period and de...

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  13. Assertion: Among isoelectronic species, the cation with the greater po...

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  14. Assertion: On moving down the group, ionization enthalpy decreases. ...

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  15. Assertion: Shielding effect increases as we go down the group. Rea...

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  16. Assertion: Na(2)O is basic oxide whereas Cl(2)O(7) is acidic oxide. ...

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  17. Assertion: The ionization of s-electrons requires more energy than tha...

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  18. Assertion: The ionic size of O^(2-) is bigger than that of F^(-) ion. ...

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  19. Assertion: When the atoms of first transition series ionize, the 4s-or...

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  20. Assertion: The ionization of s-electrons requires more energy than tha...

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