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The order of the magnitude of first ioni...

The order of the magnitude of first ionisation potentials of `Be,B,N` and `O` is

A

`Ngt O gt Be gt B`

B

`N gt Be gt O gt B`

C

`Be gt B gt N gt O`

D

`B gt Be gt O gt N`

Text Solution

Verified by Experts

The correct Answer is:
A
`N gt O gt Be gt B ` Ist ionisation enrgy of `N gt O` because of half filled p - orbital.
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ERRORLESS-CLASSFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -NCERT BASED QUESTIONS (Ionisation Energy)
  1. Which of the following has lowest ionisation energy

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  2. In view of their low ionisation energies, the alkali metals are

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  3. The order of the magnitude of first ionisation potentials of Be,B,N an...

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  4. Which has maximum first ionization potential?

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  5. If the IP of Na is 5.48 eV, the ionsation potential of K will be

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  6. Which of the following has the highest first ionisation energy?

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  7. Which among the following elements have lowest value of IE1?

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  8. In a given shell, the order of screeing effect is

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  9. Among the following, the third ionisation energy is highest for

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  10. Generally, the first ionisation energy increases along a period. But t...

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  11. Which of the element is expected to have lowest first ionisation entha...

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  12. The first ionisation potential of Na is 5.1eV. The value of electrons ...

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  13. Amongest Be, B, Mg and Al, the second ionization potential is maximum ...

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  14. In which of the following options the order of arrangement does ...

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  15. One among the following is the incrorrect order of increasing ionisati...

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  16. A sudden large jump between the values of second and third ionisation ...

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  17. Which element having the following electronic configuration has minimu...

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  18. The correct order of the second ionisation potential of carbon, nitrog...

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  19. The correct match of contents in Column I with those in Column II is

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  20. One electron species having ionization enegry of 54.4 eV is

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