Question 15 of 144

The  d electron configuration of Cr2+,Mn2+,Fe2+ and Ni2+ are 3d4,3d5,3d6 and 3d8 respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour?[At.no. of Cr=24,Mn=25,Fe=26,Ni=28]

(a) [Fe(H2O)6]2+

(b) [Ni(H2O)6]2+

(c) [Cr(H2O)6]2+

(d) [Mn(H2O)6]2+