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JIPMER2017Chemistryd and f Block Elements

Which of the following compound is not coloured?

Options

  1. ANa ₂ CuCl
  2. BNa ₂ Cd Cl ₄
  3. CFeSO ₄
  4. DVI ₃

Correct answer

B. Na ₂ Cd Cl ₄

Step-by-step solution

Na ₂ Cd . Cl ₄ has no unpaired electron due to presence of d¹⁰ electrons. Hence, Cd ²⁺ is a colourless compound.

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