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JAMB Chemistry 2012 Objective — Question 38

Question 38 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2012 Objective paper, with the correct answer and a full explanation.

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A common characteristic between zinc and the other transition elements is the

  • A. ability to have variable oxidation states
  • B. ability to form complex ionsCorrect
  • C. ability to act as a catalyst
  • D. ability to form coloured ions

Explanation

Like other transition elements, zinc also forms complex ions. Zinc has a fixed +2 oxidation state (i.e. it does not have variable oxidation states) and, having a completely filled d-orbital, does not give coloured ions.

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