JEE MAIN - Chemistry (2024 - 30th January Morning Shift - No. 19)
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : There is a considerable increase in covalent radius from $$\mathrm{N}$$ to $$\mathrm{P}$$. However from As to Bi only a small increase in covalent radius is observed.
Reason (R) : Covalent and ionic radii in a particular oxidation state increases down the group. In the light of the above statements, choose the most appropriate answer from the options given below:
(A) is false but (R) is true
Both (A) and (R) are true and (R) is the correct explanation of (A)
Both (A) and (R) are true but (R) is not the correct explanation of (A)
(A) is true but (R) is false
Explanation
According to NCERT,
Statement-I : Factual data,
Statement-II is true.
But correct explanation is presence of completely filled $$d$$ and $$f$$-orbitals of heavier members
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