The number of unpaired electrons in the complex ion `[CoF_6]^(3-)` is – InterviewSolution

InterviewSolution

1.	The number of unpaired electrons in the complex ion `[CoF_6]^(3-)` is (Atomic no. of `Co=27`)A. 2B. 3C. 4D. 0
Answer» Correct Answer - C Cobalt assumes `sp^(3)d^(2)` state and number of umpaired electron in `Co^(3+)` is 4

Discussion

No Comment Found

Related InterviewSolutions

Give a ligand which is bidentate and given an example of the complex formed by the ligand..
Which of the following represents hexadentate ligand ?A. 2, 2 bipyridylB. DMGC. ethylenediamineD. None of these
Hypo is used in photography because of itsA. a strong oxidising agentB. a strong reducing agentC. a strong complexing agent nD. None of the above.
Which of the following is most likely structure of `CrO_(3).6H_(2)O` if `1//3` of total chlorine of the compound is precipitated by adding `AgNO_(3)` to its aqueous solution ?A. `CrCl_(3).6H_(2)O`B. `[Cr(H_(2)O)_(3)Cl_(3)](H_(2)O)_(3)`C. `[CrCl_(2)(H_(2)O)_(4)]Cl.2H_(2)O`D. `[CrCl.(H_(2)O)_(5)]Cl_(2).H_(2)O`
The oxidation number of Fe in `K_(4)[Fe(CN))(6)]` isA. 3B. 2C. 0D. 1
Which of the following organometallic compound is `sigma` and `pi`-bonded?A. `[Fe(eta^(5)-C_(5)H_(5))_(2)]`B. `[PtCl_(3)(eta^(2)-C_(2)H_(4))]`C. `[Co(CO)_(5)NH_(3)]^(2+)`D. `Al(CH_(3))_(3)`
Chemical formula for in iron(III) hexacyanoferrate(II) isA. `Fe[Fe(CN)_(6)]`B. `Fe_(3)[Fe(CN)_(6)]`C. `Fe_(3)[Fe(CN)_(6)]_(4)`D. `Fe_(4)[Fe(CN)_(6)]_(3)`.
Why is the complex `[CoF_6]^(3-)` less stable than the complex `[Co(en)_3]^(3+)` ?
The oxidation number of `Pt` in `[Pt (C_(2)H_(4))Cl_(3))"]"^(ө)` isA. `+1`B. `+2`C. `+3`D. `+4`
Draw the structure of `[Pt(Cl_(3))(C_(2)H_(4))]`