Incorrect match is :

Incorrect match is :
  1. $\left[\mathrm{Rh}\left(\mathrm{PPh}_{3}ight)_{3} \mathrm{Cl}ight]:$ Wilkinson's catalyst
  2. $\left[\mathrm{Co}(\mathrm{CO})_{4}ight]^{-}:$ Bond order of $\mathrm{Co}-\mathrm{CO}$ bond is greater than one
  3. $\left[\mathrm{Zn}\left(\mathrm{NH}_{3}ight)_{4}ight]\left[\mathrm{Be}(\mathrm{OH})_{4}ight]:$ colorless complex
  4. $\left[\mathrm{Cr}(\mathrm{CN})_{6}ight]^{3}:$ Inner orbital low spin complex

Solution

$\left.\mathrm{Cr}(\mathrm{CN})_{6}ight]^{3-}:$ Hybridization $: \mathrm{d}^{2} \mathrm{sp}^{3}$ High or
low spin is not defined because $\mathrm{Cr}^{3+}$ is an example of $\mathrm{d}^{3}$ system of configuration. *

Asked in: JEE-TOPICTESTS-CHEMISTRY

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