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KCET2007ChemistryChemical Bonding and Molecular Structure

Which of the following forms a colourless solution in aqueous medium?

Options

  1. ACr ³⁺
  2. BC ³⁺
  3. CSc ³⁺
  4. DTi ³⁺

Correct answer

C. Sc ³⁺

Step-by-step solution

Sc ³⁺ has completely empty d -orbitals hence, it forms a colourless solutions in aqueous medium. Sc (21): [Ar] 3 d¹ 4 s² Sc ³⁺:[ Ar ] 3 d⁰ 4 s⁰

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