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प्रश्न
Which one of the following statements related to lanthanons is incorrect?
पर्याय
Europium shows +2 oxidation state.
The basicity decreases as the ionic radius decreases from Pr to Lu.
All the lanthanons are much more reactive than aluminium.
Ce4+ solutions are widely used as oxidising agents in volumetric analysis.
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उत्तर
All the lanthanons are much more reactive than aluminium.
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संबंधित प्रश्न
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 most common oxidation state of actinoids is ____________.
What is lanthanoid contraction and what are the effects of lanthanoid contraction?
Compare lanthanoids and actinoids.
Actinoid contraction is greater from element to element than the lanthanoid contraction, why?
Which of the following is not an actinoid?
The elements in which electrons are progressively filled in 4f-orbital are called ______.
Electronic configurations of four elements A, B, C and D are given below:
(A) 1s22s22p6
(B) 1s22s22p4
(C) 1s22s22p63s1
(D) 1s22s22p5
Which of the following is the correct order of increasing tendency to gain electron:
Electronic configuration, [Ne] 3s2 3p4 is for ______.
