CBSE 2026 · Region 3 · Set 1 · Q4 · 1 mark
According to Werner's theory, the primary valencies of the central metal atom :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
are satisfied by negative ions.
Coordination CompoundsWerner's Theory of Coordination CompoundsRemembermcqmedium
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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.