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Which among the following statement is w...

Which among the following statement is wrong

A

Electronic configuration of Gd`._(64)` is `4f^(7)5d^(1)6s^(2)`

B

`Ce^(4+)` is a good reductant

C

Actinoids exhibit higher oxidation states than Lanthanoids

D

Actinoids contraction is greater from element to element than Lanthanoid contraction

Text Solution

Verified by Experts

The correct Answer is:
B
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ALLEN-CHEMISTRY AT A GLANCE-INORGANIC CHEMISTRY
  1. {:(,I.P.,,Reason,),((A),NgtO,,"Half filled configuration",),((B),ZrltH...

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  2. The smallest cation and the smallest anion are respectively

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  3. Which among the following statement is wrong

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  4. Which of the following order of IP is incorrect

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  5. Consider the following value of IE(ev) for elements W and X:- {:("El...

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  6. Which one of the following represents the electronic configuration of ...

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  7. IP and EA of 'F' are 17.24 and 3.45 ev/atom resp. EN of 'F' will be :-

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  8. The increasing order of electron affinity values of O,S and Se is

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  9. A=1s^(2)2s^(2)2p^(4) B=1s^(2)2s^(2)2p^(5) C=1s^(2)2s^(2)2p^(6) (...

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  10. The correct order of increasing atomic size of element N F Si & P.

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  11. Correct order of IP is ?

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  12. Select the correct order of first ionisation potential

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  13. The ionization energy will be maximum for the process.

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  14. Which of the following molecule has highest E.N. of Xe ?

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  15. The compound X-O-H is likely to act as a base, if compared to hydrogen...

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  16. Among the following hydroxides which are is most basic ?

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  17. Amongst the following elements whose electronic configuration are give...

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  18. Which of the following molecule/species have a same bond order as that...

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  19. Which of the following molecule/species are iso-structural with N(3)^(...

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  20. Which of the following pair of species are iso-electronic ?

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