Which of the following will form yellow coloured complex compound?
Correct answer: C. Fe+3
- A. Sc+3
- B. Cu+1
- C. Fe+3
- D. Zn+2
Explanation
Fe+3 is correct because iron (III) ions can form yellow colored complex compounds under certain conditions.
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About Electronic Structure of d-Block Elements
The electronic structure of d-block elements covers the filling of the (n-1)d and ns orbitals, general electronic configurations, and the exceptions shown by chromium and copper. It explains how partially filled d orbitals produce variable oxidation states, coloured ions, magnetic behaviour and complex formation, while distinguishing transition elements from elements with completely filled d subshells.
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