The oxidation states of Cr in [Cr(H2O)6]Cl3, [Cr(C6H6)2], and K2[Cr(CN)2(O)2(O2)(NH3)] respectively are :
Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.
Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA
[Cr(H2O)6]Cl3 → Cr+3
[Cr(C6H6)2] → Cr0
K2[Cr(CN)2(O–2)2(O2)–2(NH3)] → Cr+6