Question:
IUPAC name of $[CoCl_2(en)_2]Cl$ is
IUPAC name of $[CoCl_2(en)_2]Cl$ is
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Neutral ligands like en do not affect oxidation state calculation.
Updated On: Apr 24, 2026
- Bis(ethane-1,2-diamine)dichloridocobalt(III)chloride
- Dichloridobis(ethane-1,2-diamine)cobalt(II)chloride
- Dichloridobis(ethylenediamine)cobalt(III)chloride
- Dichloridobis(ethane-1,2-diamine)cobalt(III)chloride
- Dichloridobis(ethylenediamine)cobalt(II)chloride
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Concept:
Chemistry - Coordination Compound Nomenclature.
Step 1: Find charge on complex ion. Compound: [ [CoCl_2(en)_2]Cl ] Outer $Cl^-$ has charge $-1$, so complex ion charge is $+1$.
Step 2: Find oxidation state of cobalt. Let oxidation state of Co = $x$ [ x + 2(-1) + 0 = +1 ] [ x-2=1 ] [ x=+3 ]
Step 3: Name ligands alphabetically. * $Cl^- =$ chlorido * $en =$ ethane-1,2-diamine Two of each: * dichlorido * bis(ethane-1,2-diamine)
Step 4: Write metal name with oxidation state. [ \text{cobalt(III)} ] Then counter ion = chloride.
Step 5: Final answer. [ \boxed{\text{Dichloridobis(ethane-1,2-diamine)cobalt(III)chloride}} ]
Hence, correct option is (D).
Step 1: Find charge on complex ion. Compound: [ [CoCl_2(en)_2]Cl ] Outer $Cl^-$ has charge $-1$, so complex ion charge is $+1$.
Step 2: Find oxidation state of cobalt. Let oxidation state of Co = $x$ [ x + 2(-1) + 0 = +1 ] [ x-2=1 ] [ x=+3 ]
Step 3: Name ligands alphabetically. * $Cl^- =$ chlorido * $en =$ ethane-1,2-diamine Two of each: * dichlorido * bis(ethane-1,2-diamine)
Step 4: Write metal name with oxidation state. [ \text{cobalt(III)} ] Then counter ion = chloride.
Step 5: Final answer. [ \boxed{\text{Dichloridobis(ethane-1,2-diamine)cobalt(III)chloride}} ]
Hence, correct option is (D).
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