1.

A complex is prepared by mixing CoCl_3 and Nh_3, 0.1 M solution of the complex was found to freeze at -0.372^(@)C . The formula of the complex is _________. [Molar depression constant of water =1.86^(@)C//m]

Answer»

`[CO(NH_3)_6]Cl_3`
`[Co(NH_3)_5Cl]Cl_2`
`[Co(NH_3)_4Cl_2]CL`
`[Co(NH_3)_3Cl_3]`

Answer :C


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