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[Co(NH(3))(6)]^(3+) is diamagnetic while...

`[Co(NH_(3))_(6)]^(3+)` is diamagnetic while `[CoF_(6)]^(3-)` is_____ .

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Paramagnetic
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[Co(NH_(3))_(6)]^(3+) & [CoF_(6)]^(3-) both are complexes of Co(III), but [Co(NH_(3))_(6)]^(3+) is diamagnetic while [Co(F_(6)]^(3-) is paramagnetic with mu=4.90 BM . Explain.

Two statements 'A' and 'R' are given below Select your answers to these items using the codes given below: Assertio (A) : Among the cobalt (III) complexes [Co(NH_(3))_(6)]^(3+) is a diamagnetic but [CoF_(6)]^(3-) is paramagnetic. Reason (R) : Hybridisation of [Co(NH_(3))_(6)]^(3+) is sp^(3)d^(2) where as hybridisation of Co in [CoF_(6)]^(3-) is d^(2)sp^(3) .

Consider the following two complex ions : [CoF_(6)]^(3-) and [Co(C_(2)O_(4))_(3)]^(3-) . Which of the following statement(s) is/are false ? I. Both are octahedral II. [Co(C_(2)O_(4))_(3)]^(3-) is diamagnetic while [CoF_(6)]^(3-) is paramagnetic . III. Both are outer orbital complexes . IV. In both the complexes the central metal is in the same oxidation state .

On the basic of CET explaine the following complex of Co^(3+) like [Co(NH_(3))_(6)]^(3+),[Co(en)_(3)]^(3+) and [Co(NO_(2))_(6)]^(3-) are diamagntic while [CoF_(6)]^(3-) and [Co(H_(2)O)_(6)]^(3+) are paramagnetic .

The shape of [CoF_(6)]^(-3) is

In the following questions , a statement of assertion (A) is followed by a statement of reason (R). A: [Co(NH_3)_6]^(+3) is a diamagnetic complex. R: [Co(NH_3)_6]^(+3) is a octahedral shape.

[Ni(CN)_(4)]^(2-) is diamagnetic while [Cr(NH_(3))_(6)]^(3+) is paramagnetic. Explain.

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  13. Trans form of [M(AA)(2)a(2)]^(n+) complex does not show isomerism .

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  14. Dimethylglyoxime is used from the gravimetic estimation of ion .

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  16. Potassium hexanitrocobaltate III K(3)[Co(NO(2))(6)] is called .

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  18. Organo arsenic compounds are used ar remedy for .

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  19. is used to prevent the infection of young plants .

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