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Aufbau law is nol valiJ [ut...

Aufbau law is nol valiJ [ut

A

`Cu`

B

`Cr`

C

both

D

Fe and Ag

Text Solution

Verified by Experts

The correct Answer is:
C
`Cu-[Ar]3d^(10)4s^1 , Cr-[Ar]3d^54s^1`
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AAKASH SERIES-D & F BLOCK ELEMENTS-LEVEL-II (LECTURE SHEET) (EXERCISE-I)(SINGLE & ONE OR MORE THAN ONE CORRECT ANSWERS)
  1. (X) + K2CO3 + Air overset(heat)rarr (Y) (Y)+Cl2 rarr (Z) Pink which ...

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  2. Aufbau law is nol valiJ [ut

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  3. Identify the incorrect statements

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  4. Which of the following properties would you not expect copper to exhib...

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  5. Mercury is a liquid at 0^@C because of

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  6. Which statements about mercury are correct?

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  7. Mercurous ion can be represented as

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  8. Transition elements with 4s^(1) configuration are:

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  9. Identify the correct statements :

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  10. An element of 3d-transition series shows two oxidation states x and y,...

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  11. Which of the following forms interestitial compounds(s)?

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  12. The stable oxidation state of Mn are

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  13. Which of the following compounds is coloured

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  14. Which of the following compounds is expected to be coloured :

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  15. The aqueous solution of the following salt will be coloured in the cas...

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  16. A metal M and is compound can give the following observable changes in...

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  17. Each of the following ion contains vanadium the + V oxidation state ex...

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  18. Which of the following are not coloured due lo charge transfer

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  19. Oxides of which of the following melals show oxidation state of +8 ?

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  20. Select the compounds having metal in zero oxidation state

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