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Which of the following is FALSE regardin...

Which of the following is FALSE regarding actinoids?

A

Actinoids show variable oxidation states due to the availability of 5f, 6d and 7s-orbitals.

B

Np and Pu exhibit `+7`oxidation state.

C

Nobelium is very stable in `+2` oxidation state due to `f^7`configuration.

D

When the oxidation number increases to `+6`, the actinoid ions form oxygenated ions.

Text Solution

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The correct Answer is:
C
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TARGET PUBLICATION-D AND F-BLOCK ELEMENT -CRITICAL THINKING
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  2. The bonds present in the structure of dichromate ion are

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  3. The equivalent mass of KMnO4in the following reaction is . (M = Mole...

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  4. In acidic medium one mole of MnO(4)^(-) accepts how many moles of elec...

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  5. Which orbital is progressively filled in lanthanides?

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  6. In which of the lanthanide elements, 5d electrons does NOT shift to 4f...

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  7. Configuration of La^(+3) will be same as .

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  8. Which of the following has the same observed and expected electronic c...

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  9. The most stable state of Ce (Z = 58) is

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  10. Among the following lanthanoid ions, the paramagnetic ion is

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  11. La^(+3) and Lu^(+3) have their ionic radii 'a' and 'b' respectively, t...

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  12. Across the lanthanide series, the basicity of the lanthanoid hydroxide...

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  13. The pair , that referred as 'chemical twins' is

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  14. In the periodic table actinons belong to

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  15. Identify the INCORRECT statement.

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  16. Most common oxidation state of actinoids is ......... .

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  17. Which of the following is FALSE regarding actinoids?

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  19. Which of the following statement is INCORRECT?

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  20. Which of the following statements is INCORRECT?

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