`Fe^(2+)` is paramagnetic

[Fe F_6]^(4-) is paramagnetic because

[Fe F_6]^(4-) is paramagnetic because

[Fe F_6]^(4-) is paramagnetic because

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

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

Explain why [Fe(H_2O)_6]^(2+) is paramagnetic while [Fe(CN)_6]^(4-) is diamagnetic although both are in same oxidation state.

Explain that K_4Fe(CN)_6 is diamagnetic while K_3Fe(CN)_6 is paramagnetic.