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Arrange S, P and As in order of increasi...

Arrange `S, P` and `As` in order of increasing ionisation energy.

A

`S lt P lt As`

B

`P lt S lt As`

C

`As lt S lt P`

D

`As lt P lt S`

Text Solution

Verified by Experts

The correct Answer is:
C
`IE_(1)` of `P gt S` due to half - filled stable configuration `(3s^(2) , 3p^(3))` of `P`. Moreover, `P` and `As` both belong to group `15`, but `P` is in the `3rd` period and `As` is in the `4th` period and `IE_(1)` decreases down the group `(darr )`. Hence, the answer is (c).
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CENGAGE CHEMISTRY ENGLISH-PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY-Exercises (Single Correct) Ionisation Energy (Ie)
  1. Which of the following process requires the largest amount of energy ?

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  2. Which of the following in an energy consuming process ?

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  3. Arrange S, P and As in order of increasing ionisation energy.

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  4. The five successive ionization enthalpies of an element are 800, 2427 ...

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  5. Which of the following transitions involves maximum amount of energy?

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  6. Which of the elements show least values of ionisation within their per...

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  7. Which of the following has the largest ionisation energy.

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  8. Which one of the following elements has the highest ionisation energy?

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  9. The correct order of second ionisation potentials of carbon, nitrogen,...

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  10. Which has the largest first ionisation energy ?

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  11. Which of the following element has the highest ionisation enregy ?

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  12. Ionisation enthalpy of nitrogen is more than oxygen because of

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  13. The set representing the correct order of the first ionisation potenti...

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  14. The first ionisation potential of which of the element is highest

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  15. Highest ionisation potential in a period is shown by

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  16. The first ionisation energy is maximum for

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  17. Which sequence is correct regarding the first ionisation potential of ...

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  18. The second ionisation potentials in electron volts of oxygen and fluor...

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  19. The value of IE(1), IE(2), IE(3) and IE(4) of an atom are respectively...

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  20. IE(1), IE(2) and IE(3) values are 100, 150 and 1500 eV respectively. T...

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