Home
Class 12
CHEMISTRY
The oxidation number of cobalt in K [Co(...

The oxidation number of cobalt in `K [Co(CO)_(4)]` is

A

+l

B

3

C

-1

D

-3

Text Solution

Verified by Experts

The correct Answer is:
C
© `K[Co{CO)_4]`
Let O.N. of Co be x then `1 xx (+1) + x + 4 xx (0) = 0`
`therefore O.N. of Co is = -1`
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    DISHA PUBLICATION|Exercise EXERCISE-2 : CONCEPT APPLICATOR|30 Videos

  • REDOX REACTIONS

    DISHA PUBLICATION|Exercise EXERCISE-2 : CONCEPT APPLICATOR|30 Videos

  • POLYMERS

    DISHA PUBLICATION|Exercise EXERCISE -2 : CONCEPT APPLICATOR|30 Videos

  • SOLUTIONS

    DISHA PUBLICATION|Exercise Exercise|116 Videos

Similar Questions

Explore conceptually related problems

the oxidation state of cobalt in

Oxidation number of 'Co' in Hg[Co(SCN)_(4)]

Co-ordination number of cobalt in [Co(C_(2)O_(4))_(3)]^(3-) is

Write oxidation number of iron in [Fe(CO)_(5))]

DISHA PUBLICATION-REDOX REACTIONS-EXERCISE-1 : CONCEPT BUILDER ( TOPICWISE )
  1. The brown - ring complex compound of iron is formulated as [Fe(H2O)5(N...

    Text Solution

    |

  2. The oxidation number of sulphur in S2F2, H2S respectively, are

    Text Solution

    |

  3. The oxidation number of cobalt in K [Co(CO)(4)] is

    Text Solution

    |

  4. Oxidation number ofnitrogen in (NH4)2SO4 is

    Text Solution

    |

  5. In which of the following compounds iron has lowest oxidation state?

    Text Solution

    |

  6. In which of the compounds does 'maganese' exhibit highest oxidation nu...

    Text Solution

    |

  7. On reduction of KMnO(4) by oxalic acid in acidic medium, the oxidation...

    Text Solution

    |

  8. Among the following, identify the species with an atom in +6 oxidatio...

    Text Solution

    |

  9. The oxidation state of chromium in the final product formed by the rea...

    Text Solution

    |

  10. in which of the following transition metal complexes does the metal ex...

    Text Solution

    |

  11. In which of the following compounds , the oxidation number of iodine i...

    Text Solution

    |

  12. The oxide which cannot act as reducing agent is

    Text Solution

    |

  13. The oxidation number of an element in a compound is evaluated on the b...

    Text Solution

    |

  14. The oxidation states of the most electronegative elements in the produ...

    Text Solution

    |

  15. Which of the following statements is not correct?

    Text Solution

    |

  16. The3ClO^(-)(aq.)to ClO(3)^(-)(aq.)+2Cl^(-)(aq.) is an example of

    Text Solution

    |

  17. For the reaction : NH3 + OCI^(-) rarr N2H4 + Cl^(-) in basic medium, t...

    Text Solution

    |

  18. Which of the following reactions involve disproportionation ?

    Text Solution

    |

  19. In a balanced equation H(2)SO(4)+xHI rarr H(2)S+YI(2)+zH(2)O, the valu...

    Text Solution

    |

  20. KMnO4 oxidises oxalic acid in acidic medium. The number of CO2 molecul...

    Text Solution

    |