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Which of the following arrangements does not represent the correct order of the property stated against it ?

1. Co 3+ < Fe 3+ < Cr 3+ < Sc 3+ : stability in aqueous solution
2. Sc < Ti < Cr < Mn : number of oxidation states
3. V 2+ < Cr 2+ < Mn 2+ < Fe 2+ : paramagnetic behaviour
4. Ni 2+ < Co 2+ < Fe 2+ < Mn 2+ : ionic size

Correct answer: V 2+ < Cr 2+ < Mn 2+ < Fe 2+ : paramagnetic behaviour

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