Chemistry · d-Block Elements & Periodic Properties
Choose the correct statement from the options given below:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The metal Cobalt has the electronic configuration [Ar]3d5 in the +3 oxidation state.
- 2As the oxidation number of a transition metal increases, its ionic character decreases and the oxides show predominantly acidic nature.✓
- 3The paramagnetic nature of the cations increases in the order: V2+ < Cr2+ = Mn2+ < Fe2+.
- 4Ionic compounds of Sc3+ and Cu+ are coloured because of d-d electronic transitions.
Correct answer
As the oxidation number of a transition metal increases, its ionic character decreases and the oxides show predominantly acidic nature.
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