Which of the following arrangements 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

Options

A. `V^(2+)ltCr^(2+)ltMn^(2)ltFe^(2+)` : Paramagnetic behaviour
B. `Ni^(2+)ltCo^(2+)ltFe^(2+)ltMn^(2+)` : ionic size
C. `Co^(3+)ltFe^(3+)ltCr^(3+)ltSc^(3+)` : stability in aqueous solution
D. `ScltTiltCrltMn` : number of oxidation states

Answer

A