CBSE 2023 · Region 1 · Set 3 · Q2 · 1 mark
Lanthanoid contraction is due to increase in:
Official answer
From CBSE’s own marking scheme for this paper.
(C)
effective nuclear charge
The d-and f-Block ElementsThe LanthanoidsRemembermcqmedium
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CBSE Class 12 Chemistry past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.