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From La to Lu basicity of hydoxides...

From La to Lu basicity of hydoxides

A

increases

B

remains same

C

decreases

D

cannot be predicted

Text Solution

Verified by Experts

The correct Answer is:
C
Basicity decreases from La to Lu as atomic radii decreases from La to Lu
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On the basis of lanthanoid contraction, explain the following: (i) Nature of bonding in La_(2)O_(3) and Lu_(2)O_(3) . (ii) Trends in the stability of oxo salts of lanthanoids from La to Lu. (iii) Stability of the complexes of lanthanoids. (iv) Radii of 4d and 5d block elements. (v) Trends in acidic character of lanthanoids oxides.

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MARVEL PUBLICATION-D AND F BLOCK ELEMENTS -TEST YOUR GRASP
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  3. What is the general electronic configuration of transition elements

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  5. Which one of the following refers to configuration of transition elem...

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  6. The outer electronic configuration of chromium is

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  10. Which transition metal shows the highest oxidation state ?

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  11. Which of the following would be diamagnetic?

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  12. The element present immediately below Zn in the periodic table in the ...

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  13. Oxidation state of +1 is possible with

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  14. For Sc (2 1), if both 3d and 4s electrons in involved in bonding, the ...

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  15. Which one of the following forms a colourless solution in aqueous medi...

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  16. Which of the following group belongs to transition series ?

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  17. In transition elements, the differentiating electron enters into subs...

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  18. Which of has the highest number of unpaired electrons?

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