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प्रश्न
Out of Lu(OH)3 and La(OH)3 which is more basic and why?
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उत्तर
- As we move from Ce3+ to Lu3+, the basic character of Lu3+ ions decreases.
- Due to the decrease in the size of Lu3+ ions, the ionic character of the Lu – OH bond decreases, covalent character increases which results in the decrease in the basicity.
- Hence, La(OH)3 is more basic than Lu(OH)3.
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संबंधित प्रश्न
Which one of the following statements related to lanthanons is incorrect?
Which of the following lanthanoid ions is diamagnetic?
The actinoid elements which show the highest oxidation state of +7 are ____________.
Which one of the following is not correct?
What are inner transition elements?
Justify the position of lanthanides and actinides in the periodic table.
What are actinoids? Give three examples.
Actinoid contraction is greater from element to element than the lanthanoid contraction, why?
Electronic configuration, [Ne] 3s2 3p4 is for ______.
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: Size of Bk3+ ion is less than Np3+ ion.
Reason R: The above is a consequence of the lanthanoid contraction.
In the light of the above statements, choose the correct answer from the options given below.
