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NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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Given below are two statement : One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: Size of

B{k^{3 + }}

ion is less than

N{p^{3 + }}

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:

View answer and explanation

Correct option: D

Both A and R are true and R is the correct explanation of A

Option D (Both A and R are true and R is the correct explanation of A) is correct because the size of

B{k^{3 + }}

is indeed smaller than

N{p^{3 + }}

due to the actinide contraction, analogous to lanthanide contraction.

NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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