Coordination CompoundMedium

Question

The formula of tetraammineaquachloridocobalt(III) chloride is

Options

A.$\left\lbrack Co\left( {NH}_{3} \right)_{4}\left( H_{2}O \right)Cl \right\rbrack Cl$
B.$\left\lbrack Co\left( {NH}_{3} \right)_{4}\left( H_{2}O \right)Cl \right\rbrack{Cl}_{2}$
C.$\left\lbrack Co\left( {NH}_{3} \right)_{4}{Cl}_{2} \right\rbrack \times H_{2}O$
D.$\left\lbrack Co\left( {NH}_{3} \right)_{4} \right\rbrack{Cl}_{3} \times H_{2}O$

Solution

Sol. [Key Concept: Coordination nomenclature → molecular formula] Tetraammineaquachloridocobalt(III) chloride is $\left\lbrack Co\left( {NH}_{3} \right)_{4}\left( H_{2}O \right)Cl \right\rbrack{Cl}_{2}$.

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