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Which of the following pairs of ions are...

Which of the following pairs of ions are isoelectronic and also isostructural ?

A

`CO_(3)^(2-),NO_(3)^(-)`

B

`ClO_(3)^(-),CO_(3)^(2-)`

C

`SO_(3)^(2-),NO_(3)^(-)`

D

`ClO_(3)^(-),SO_(3)^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
A, D
`CO_(3)^(2-)` ion has 32 electrons `(6+3xx8+2)` and C is `sp^(2)` hybridized. `NO_(3)^(-)` has 32 electrons and N is also `sp^(2)`-hybridized. Thus, `CO_(3)^(2-)andNO_(3)^(-)` are isoelectronic as well as isostructural, i.e., option (a) is correct.
`CO_(3)^(-)` ion has 42 electrons `(17+3xx8+1)` and Cl is `sp^(3)`-hybridized, while `SO_(3)^(2-)` also has 42 electrons and S is `sp^(3)`-hybridized. Thus, `ClO_(3)^(-)andSO_(3)^(2-)` are also isoelectronic and isostructural, i.e., option (d) is correct.
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Knowledge Check

  • Which of the following pairs of ions are isoelectronic and isostructural?

    A
    `SO_3^(2-) , NO_3^(-)`
    B
    `ClO_3^(-) , SO_3^(2-)`
    C
    `CO_3^(2-), SO_3^(2-)`
    D
    `ClO_3^(-), CO_3^(2-)`

  • Which of the following pairs of ions are isoelectronic and isostructural ?

    A
    `SO_(3)^(2-) , NO_(3)^(9-)`
    B
    `ClO_(3)^(-), SO_(3)^(2-)`
    C
    `CO_(3)^(2-), SO_(3)^(2-)`
    D
    `ClO_(3)^(-) , CO_(3)^(2-)`

  • Which of the following pairs of ions are isoelectronic and isostructural ?

    A
    `CO_(3)^(2-),NO_(3)^(-)`
    B
    `ClO_(3)^(-),CO_(3)^(2-)`
    C
    `SO_(3)^(2-),NO_(3)^(-)`
    D
    `ClO_(3)^(-),SO_(3)^(2-)`

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