CBSE 2026 · Region 2 · Set 1 · Q4 · 1 mark
Electronic configuration of chromium is :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle [\mathrm{Ar}] 3 \mathrm{~d}^{5} 4 \mathrm{~s}^{1}$
The d-and f-Block ElementsElectronic Configurations of the d-Block ElementsRemembermcqeasy
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CBSE Class 12 Chemistry past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.