Match List - I with List - II. List - I: Chromium (III) Complexes ($\mathbf{en}=\mathbf{ethylene}$ diamine) List - II: $\boldsymbol{\Delta}_{\mathbf{0}}\left(\mathbf{cm}^{-\mathbf{1}}\right)$ Choose the correct answer from the options given below :

The crystal-field splitting grows with ligand field strength along the spectrochemical series . Hence has the largest value, ; the next, ; then, ; and the least, . The matching is A-IV, B-I, C-II, D-III.

JEE Main · 2026 · 02 Apr 2026 · Shift 1 · Coordination Compounds

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Match List - I with List - II.

List - I: Chromium (III) Complexes (

en = ethylene

diamine)
List - II:

Δ_{0} (cm^{- 1})

Choose the correct answer from the options given below :

Answer: A → IV, B → I, C → II, D → III

Solution

The crystal-field splitting

Δ_{0}

grows with ligand field strength along the spectrochemical series

C N^{-} > en > H_{2} O > F^{-}

. Hence

[Cr (CN)_{6}]^{3 -}

has the largest value,

26, 600 c m^{- 1}

;

[Cr (en)_{3}]^{3 +}

the next,

22, 300 c m^{- 1}

;

[Cr (H_{2} O)_{6}]^{3 +}

then,

17, 400 c m^{- 1}

; and

[Cr F_{6}]^{3 -}

the least,

15, 060 c m^{- 1}

. The matching is A-IV, B-I, C-II, D-III.

JEE Main · 2026 · 02 Apr 2026 · Shift 1 · Match the columns

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