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The correct order of electron affinity o...

The correct order of electron affinity of B, C, N, O is

A

`O gt C gt N gt B`

B

`B gt N gt C gt O`

C

`O gt C gt B gt N`

D

`O gt B gt C gt N`

Text Solution

Verified by Experts

The correct Answer is:
C
`underset(140.9)Ogtunderset(122.3)Cgtunderset(83)Bgtunderset(0)N` Values of electron affinity increases on going from left to right in periods but the value of electron affinity of `V^(th)` A elements is less than that of `IV^(th)` A element, this is due to half filled p-orbital present.
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ERRORLESS -CLASSIFICATION OF ELEMENTS AND PERIODIC PROPERTIES -Ordinary Thinking Objective Questions Electron affinity
  1. Fluorine has lower electron affinity than chlorine because of

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  2. Order of electron affinity of F,Cl,Br and I is

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  3. Which of the following has the least electron affinity in kJ mol^(-1)?

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  4. Which of the following species has the highest electron affinity?

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  5. Which of the following properties show gradual decrease with increase ...

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  6. The electronic configuration of the element with maximum electron affi...

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  7. Match the entries listed in column I with appropriate properties liste...

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  8. The element with positive electron gain enthalpy is

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  9. The electron affinity values (in kJ mol^(-1) ) of three halogens, X, Y...

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  10. Which one of the following is an incorrect statement?

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  11. Electron affinity depends on

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  12. The electron affinity for the inert gases is

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  13. The correct order of electron affinity of B, C, N, O is

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  14. the amount of energy released when 10^(6) atoms of iodine in vapour st...

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  15. The electron affinity of Be is almost similar to that of

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  16. Which among the following factors is the most important in making fluo...

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  17. Which of the following pairs show reverse properties on moving along a...

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  18. Nitrogen has lower electron affinity than its preceding element carbon...

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  19. In comparison with alkali metals, the electron affinity of halogens is

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  20. Assertion : More is the electron affinity greater is the reducing char...

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