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The lanthanide contraction is responsibl...

The lanthanide contraction is responsible for the fact that

A

Zr and Y have about the same radius

B

Zr and Nb have similar oxidation state

C

Zr and Hf have about the same radius

D

Zr and Zn have the same oxidation state

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The correct Answer is:
C
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AAKASH INSTITUTE-THE D AND F-BLOCK ELEMENTS -Assingnment(Section -A ( Objective Type Questions)(One option is correct))
  1. Which of the following oxide is acidic in nature ?

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  2. The inner transition element that is radioactive is

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  3. The lanthanide contraction is responsible for the fact that

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  4. Size of lanthanoid decrease becaue of poor screening of

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  5. The strongest base is

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  6. The element that is not present in misch metal is

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  7. Most stable oxidation state of Lanthanoids

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  8. When intimate mixture of potassium dichromate and potassium chloride i...

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  9. Which one of the following pairs of ions have the same electronic conf...

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  10. Cr(2)O(7)^(2-)+Xoverset(H^(o+))rarrCr^(3+)+H(2)O+ "oxidised product" o...

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  11. The reducing nature of any metal in aqueous solution depends upon a...

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  12. Which of the following oxide is basic ?

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  13. The spin only magnetic moment of transition metal ion found to be 5.92...

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  14. The correct electronic configuration of lanthanum is

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  15. Give the general electronic configuration of actinides.

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  16. Lanthanoid which is radioactive is

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  17. Which is correct

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  18. Lanthanides and Actinides generally differ in

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  19. Acidified K(2)Cr(2)O(7) on reaction with hydrogen peroxide give deep b...

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  20. Hybridisation of chromium ions in chromate and dichromate ions is resp...

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