The formula of tetraammineaquachloridocobalt(III) chloride is

1. A. [Co(NH3)4Cl2].H2O
2. B. [Co(NH3)4]Cl3.H2O
3. C. [Co(NH3)4(H2O)Cl]Cl
4. D. [Co(NH3)4(H2O)Cl]Cl2

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