JAMB Chemistry 2025 Objective — Question 16
Question 16 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2025 Objective paper, with the correct answer and a full explanation.
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Which statement about transition metals is correct?
- A. They have completely filled d-orbitals
- B. They exhibit only one oxidation state
- C. Their compounds are often coloured due to d–d transitionsCorrect
- D. They are poor catalysts
Explanation
Transition metals have partially filled d-orbitals, exhibit variable oxidation states, form coloured compounds (d–d electron transitions), and are excellent catalysts.
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