On treatment of 100 mL of 0.1 M solution of CoCl3. 6H2O with excess AgNO3; 1.2 $\times$ 1022 ions are precipitated. The complex is :

Question

On treatment of 100 mL of 0.1 M solution of CoCl₃. 6H₂O with excess AgNO₃; 1.2 $\times$ 10²² ions are precipitated. The complex is :

[Co(H₂O)₃Cl₃].3H₂O

[Co(H₂O)₆]Cl₃

[Co(H₂O)₅Cl]Cl₂.H₂O

[Co(H₂O)₄Cl₂]Cl.2H₂O

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