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Which of the following sequence regardin...

Which of the following sequence regarding the first ionisation potential of coinage metal is correct?

A

`Cu gt Ag gt Au`

B

`Cu lt Ag lt Au`

C

`Cu gt Ag lt Au`

D

`Ag gt Cu lt Au`

Text Solution

Verified by Experts

The correct Answer is:
C
Atomic size s of `Ag` and `Au` are closer to each other but nuclear is more on `Au`.
`(Au:889, Cu:745, Ag:731 kJ mol^(-1))`
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A2Z-CLASSIFICATION OF ELEMENTS AND PERIODICITY OF PROPERTIES-Ionisation Energy
  1. Which of the following is incorrect?

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  2. The process requiring the absorption of energy is

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  3. Which of the following sequence regarding the first ionisation potenti...

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  4. The element with highest value of ionisation potential is

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  5. In halogens, with increase of atomic number where habit is found

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

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  7. A rarr A^(+)+e,E(1) and A^(+) rarr A^(2+)+e,E(2). The energy required ...

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  8. Which of the following relation is correct with respect first (I) and ...

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  9. How many ionisation energies can carbon have?

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  10. The correct sequence of elements in decreasing order first ionisation ...

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  11. The first ionisation potentials (eV) of Be and B respectively are

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  12. the highest ionisation energy stands for

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  13. which of the following has the least ionisation potential?

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  14. The first ionisation potential will be maximum for

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  15. The second ionisation potential is

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

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  17. What will be the order of first ionisation energy?

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  18. In which of the following process highest energy is absorbed?

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  19. The increasing order of the first ionisation enthalpies of the element...

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  20. Which of the following explanation is best for not placing hydrogen in...

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