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Which of the following complexes has low...

Which of the following complexes has lowest molar conductance ?

A

`CoCl_(3) * 3 NH_(3)`

B

`CoCl_(3) * 4 NH_(3)`

C

`CoCl_(3) * 5 NH_(3)`

D

`CoCl_(3) * 6 NH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
Molar conductance is the conducting power of all the ions produced by dessolving 1 g-mole of an electrolyte . Therefore molar conductance = number of ions produced

From above table it is clear that molar conduction of the complexs will be in the following order
`a lt b lt c lt d`
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Knowledge Check

  • Which of the following complex has lowest molar conductivity ?

    A
    `[Co(NH_(3))_(6)][Cr(NO_(2))_(6)]`
    B
    `[Cr(NH_(3))_(5)(NO)_(2)][Co(NH_(3))(NO_(2))_(5)]`
    C
    `[Cr(NH_(3))_(4)(NO_(2))_(2)][Co(NH_(3))_(2)(NO_(2))_(4)]`
    D
    `[Co(NH_(3))_(5)(NO_(2))][Cr(NH_(3))(NO_(2))_(5)]`

  • Which of the following complexes has the least molar conductivity in the solution?

    A
    `CoCl_(3).3NH_(3)`
    B
    `CoCl_(3).4NH_(3)`
    C
    `CoCl_(3).5NH_(3)`
    D
    `CoCl_(3).6NH_(3)`

  • Which of the following will have greatest molar conductance at infinite dilution?

    A
    `[Pt(NH_(3))_(5)CI]CI_(3)`
    B
    `[pt(NH_(3))_(4)CI_(2)]CI_(2)`
    C
    `[Pt(NH_(3))_(2)CI_(4)]`
    D
    `[Pt(NH_(3))_(6)]CI_(4)`

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