A complex is represented as `CoCl_(3).xNH_(3)`. Its 0.1 molal solution in water shows `Delta T_(f)=0.558k. K_(f)` for `H_(2)O` is `1.86K//"mol"`. Assuming `100%` ionisation of complex and coordination number of Co in six . The formula of complex is
A
`[Co(NH_(3)_(4)CL_(2)]Cl`
B
`[Co(NH_(3))_(5)Cl]Cl_(2)`
C
`[Co(NH_(3))_(4)CL_(2)]Cl`
D
none of these
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The correct Answer is:
b
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