Q35 / 160 · AP EAMCET 2020 (07 Oct Special) · Chemistry

The oxidation state of $\mathrm{Co}$ in $\mathrm{K}\left[\mathrm{Co}(\mathrm{CO})_4\right]$ is

  • A
    +3
  • B
    –3
  • C
    +1
  • Correct answer
    D
    –4

Hence, the correct answer is option: 'D'.

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