Question

13. Which of the following correctly places the ligands in their order in the
spectrochemical series?
(A) Br- < Cl< NH3 <H2O
(B) I < Br< <H2O <[OH]-
(C) F- < Cl- <H2O < NH3
(D) I < Cl- <H2O < en​

Answer 1

Answer:

Explanation:

I

−

<Br

−

<S

2

−<SCN

−

<CI

−

<NO

3

−

,F

−

<OH

−

<EtOH<OX,<H

2

O<NCS

−

<py,NH

3

<en<bpy,phen<NO

2

−

<C

6

H

5

−

<CN

−

<CO.

Hope it helps you ✌️

Answer 2

(D) I < Cl- <H2O < en​ places the lig@nds in their order in the  spectrochemical series.

• A lig@nd is any compound/ion that can act as a nucleophile.
• The lig@nds form coordinate bonds with a metal atom by sharing 2 electrons.
• A lig@nd's strength is directly proportional to its crystal field splitting energy.
• Lig@nds are arranged in increasing order of their strength in a spectrochemical series.
• The order of the series is:

        I⁻ < Br⁻ < Cl⁻ < F⁻ < OH⁻ < H₂O < NH₃ < en