Chemistry, asked by MohammadAbbas5228, 11 months ago

The compound which is not coloured is
(a) K₄[Fe(CN)₆ ] (b) K₃[Fe(CN)₆ ]
(c) Na₂[CdCl₄ ] (d) Na₂ [CuCl₄ ]

Answers

Answered by KailashHarjo
1

• The compound (c) Na2[CdCl4] is not coloured.

• due to the presence of Cd central atom.

• Cd has d10 electronic configuration, so that transition does not occur.

Answered by brokendreams
1

Na₂[CdCl₄ ]  is the non coloured complex.

Explanation:

  • Colour of a transition element comes form the p to d transition or d to d transition of the electrons.
  • Because of the less energy difference of the 5s and 4d electrons, they can be transited from one shell to other.
  • In case of cadmium, the atomic number of cadmium is 48.
  • The end electronic configuration of cadmium is 4d10 5s2.
  • Now with Cd2+, the end electronic configuration is 4d10.
  • So there's no vacant d orbital for d d transition.
  • So there's no colour to this compound.

For more information about coloured of transition complex,

https://brainly.in/question/2363165

why transition metal ions are coloured in water - Brainly.in

https://brainly.in/question/14786229

How can you use crystal field theory to explain colour of transition metal complexes​

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