Q3 / 90 · JEE Main 2012 (19 May Online) · Chemistry

The correct order of ligands in the spectrochemical series is

  • A
    $\mathrm{Cl}^{-}>$en $>\mathrm{CN}^{-}>\mathrm{NCS}^{-}$
  • Correct answer
    B
    $\mathrm{CN}^{-}>$en $>\mathrm{NCS}^{-}>\mathrm{Cl}^{-}$
  • C
    $\mathrm{NCS}^{-}>\mathrm{CN}^{-}>\mathrm{Cl}^{-}>$en
  • D
    en $>\mathrm{CN}^{-}>\mathrm{Cl}^{-}>\mathrm{NCS}^{-}$

Solution

Correct order is : $\mathrm{CN}^{-}>$en $>\mathrm{NCS}^{-}>\mathrm{Cl}^{-}$

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

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