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For successive members of the first row ...

For successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have the highest third ionization enthalpy?

A

Vanadium (Z=23)

B

Manganese (Z=25)

C

Chromium (Z=24)

D

Iron (Z=26)

Text Solution

Verified by Experts

The correct Answer is:
B
`Mn^(2+)` has the most stable configuration i.e., `3d^5 ` ( all the five - orbitals are singly occupied ) . Hence to remove electron from ` mn^(2+)` ion requires more energy i.e, the third ionization enthalpy of manganese is highest
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BRILLIANT PUBLICATION-THE D-AND F-BLOCK ELEMENTS-QUESTIONS (LEVEL-III)
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  6. Identify the product and its colour when MnO2 is fused with solid KOH ...

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  7. When manganous salt is fused with a mixture of KNO3 and solid NaOH, th...

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  8. Consider following statements, I. The size of the lanthanide M^(3+) io...

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  9. Most transition metals I:forms sets of compounds which display differe...

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  13. Which of the following statements are true?

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  14. Although +3 is the characteristic oxidation state for lanthanoids, cer...

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  15. Select correct statements.

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  16. When CO2 is passed into aqueous

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  19. Amongst the following, identify the species with an atom in +6 oxidati...

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  21. The complex forming tendency of a transition metal depends upon:

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