Out of Lu(OH)3 and La(OH)3 which is more basic and why? - Chemistry

Out of Lu(OH)₃ and La(OH)₃ which is more basic and why?

थोडक्यात 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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पाठ 4: Transition and Inner Transition Elements - Evaluation [पृष्ठ १२९]

पाठ 4 Transition and Inner Transition Elements
Evaluation | Q 19. | पृष्ठ १२९

Write the general outer electronic configuration of f- block elements.

Assertion: Ce⁴⁺ is used as an oxidizing agent in volumetric analysis.

Reason: Ce⁴⁺ has the tendency of attaining +3 oxidation state.

The actinoid elements which show the highest oxidation state of +7 are ____________.

What are actinoids? Give three examples.

What is lanthanoid contraction and what are the effects of lanthanoid contraction?

Actinoid contraction is greater from element to element than the lanthanoid contraction, why?

Why do zirconium and Hafnium exhibit similar properties?

The electronic configuration of gadolinium (Atomic number 64) is ______.

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.