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Which of the following arrangements does...

Which of the following arrangements does not represent the correct order of the property stated against it ?
(i) `Ni^(2+) lt Co^(2+) lt Fe^(2+) lt Mn^(2+)` : ionic size
(ii) `Co^(3+) lt Fe^(3+) lt Cr^(3+) lt Sc^(3+)` : stability in aqueious solution
(iii) `Sc lt Ti lt Cr lt Mn` : number of oxidation states
(iv) `V^(2+) lt Cr^(2+) lt Mn^(2+) lt Fe^(2+)` : paramagnetic behaviour

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