How will each of the following respond to magnetic field and why ? `Co^(2+)`, `Sc^(3+)`, `Cr^(3+) (At. No. Co=27, Sc=21, Cr=24)`

Giving reasons indicate which one of the following would be coloured ? Cu^(+), VO^(2+), Sc^(3+), Ni^(2+) (At. no. of Cu = 29, V = 23, Sc = 21, Ni = 28)

Which of the following ions are expected to be coloured ? Ni^(2+), Ti^(3+), Cu^(+), Sc^(3+), Zn^(2+)

Amongst the following ion what is the value of its magnetic moment [Cr(H_2O)_6]^(3+)

Which of the Co^(2+) , Fe^(2+) , Sc^(3+) are coloured and why ?

Which shows the maximum magnetic moment? V^(3+) Cr^(3+) Fe^(3+) Co^(2+)

Predict which of the following will be coloured in aqueous solution ? Ti^(3+), V^(3+) , Sc^(3+) , Fe^(3+) , Co^(2+) and MnO_4^Theta

The d-electron configurations of Cr^(2+), Mn^(2+), Fe^(2+) and Co^(2+) are d^4,d^5,d^6 and d^7 respectively. Which one of the following will exhibit minimum paramagnetic behaviour ? (At. nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)

Complete the following reaction equation : S_2O_3^(2-)+ Cr_2O_7^(2-)+ H^(+) rarr

Out of ions Co^(2+) ,Cr^(3+), ( Sc^(3+) which will give coloured aqueous solution and what will be the magnetic behaviour of each ion ? (Atomic number of Co = 27, Sc = 21 and Cr = 24).