Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: 18 Electron Rule · Exam: NET DEC 2011 · Marks: 2 · Difficulty: Medium
The correct combination of metal, number of carbonyl ligands and the charge for a metal carbonyl complex $[\mathrm{M(CO)_x}]^{z-}$ that satisfies the 18 electron rule is