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Assertion: The ionisation energy of N is...

Assertion: The ionisation energy of N is more than that of O.
Reason: Electronic configuration of N is more stable due to half filled 2p orbitals.

A

Both A and B true and R is the correct explanation A

B

Both A and R are true but R is not a correct explanation of A

C

A is true but R is false

D

A is false but R is true

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The correct Answer is:
A
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DINESH PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-All Questions
  1. Assertion: The ionisation energy of N is more than that of O. Reason...

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  2. The 3rd period of the periodic table contains

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  3. The element californium belongs to a family of

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  4. Which set contains pair of elements that do not belong to same group b...

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  5. Which of the following belongs to the category of transition metals?

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  6. Without looking at the periodic table, select the elements belonging t...

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  7. The elements of same group of the periodic table have

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  8. The elements which are characterised by the outer shell configuration ...

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  9. Elements with atomic number 35 belongs to

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  10. Pd has exceptional valence shell electronic configuration of 4d^(10)5s...

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  11. The element with atomic number 56 belongs to which block ?

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  12. The tenth element in the periodic table resembles the elements with at...

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  13. The first ionisation energy of Al is smaller than that of Mg because :

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  14. The second ionisation potential is

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  15. Which of the elements show least values of ionisation enthalpy within ...

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  16. Which of the following isoelectronic ions have the lowest ionization e...

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  17. Which of the following process requires the largest amount of energy ?

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  18. From the ground state electronic configuration of the elements given ...

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  19. The elements which occupy the peaks of ionisation energy curve are

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  20. The power of an atom to attract the shared pair in a molecule:

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  21. Which out of the following has the largest ionisation energy ?

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