CUET and UG exam CUET UG 2025 Mock Test Series Chemistry Coordination Compounds

In the coordination compound [Cr(NH)3)2(en)Cl2]Br, where en = ethylenediamine, the coordination number (C.N.) and oxidation number (O.N.) of the metal atom, respectively are

1
C.N.= 6; O.N.= 4
2
C.N.= 6; O.N.= 3
3
C.N.= 5; O.N. = 2
4
C.N. = 5; O.N. = 4 
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