Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: 18 Electron Rule · Exam: NET JUNE 2014 · Marks: 2 · Difficulty: Medium
The oxidation state of Ni and the number of metal-metal bonds in $\left[\mathrm{Ni}_{2}(\mathrm{CO})_{6}\right]^{2-}$ that are consistent with the 18 electron rule are