Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Organometallic Compounds – General · Exam: NET DEC 2018 · Marks: 2 · Difficulty: Hard
The VCN in $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}(\mathrm{A})$ and $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}(\mathrm{B})$ and $\mathrm{V}_{\mathrm{CO}}$ in $\left[\mathrm{Cr}(\mathrm{CO})_{3}\left(\mathrm{NH}_{3}\right)_{3}\right](\mathrm{C})$ and $\left[\mathrm{Cr}(\mathrm{CO})_{6}\right](\mathrm{D})$ are compared below. The pair with correct order is