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A complex is represented as CoCl(3).xNH(...

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))_(6)]Cl_(3)`

B

`[Co(NH_(3))_(5)Cl]Cl_(2)`

C

`[Co(NH_(3))_(4)Cl_(2)]Cl`

D

`[Co(NH_(3))_(3)Cl_(3)]`

Text Solution

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The correct Answer is:
B
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