Coordination Compounds

CBSE Class 12 · Chemistry · 29 past questions

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1. Q3 2026

   The secondary valency of Co in the complex [Co(NH$_3$)$_5$(NO$_2$)]$^{2+}$ is

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2. Q5 2026

   The oxidation number of Co in $[Co(en)_3]_2(SO_4)_3$ is…

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