The colourless ion among the following is (A) `Mn^(2+)`, B)`Cu^(+)` (C) `Cr^(3+)` (D) `Fe^(2+)`

The colourless ion from among the following is

The paramagnetic species among the following is- Na^(+), Zn^(2+), Cu^(+), Fe^(3+)

Write the electronic configurations of the following ions : (i) Cu^(+) (ii) Co^(2+) (iii) Cr^(3+) (iv) Mn^(2+)

Predict the number of species which will be colourless in aqueous solution, among the following Ti^(3+),V^(3+),Cu^(+),Sc^(3+),Mn^(2+),Fe^(3+),Co^(2+)

Write down the number of 3d electrons in each of the following ions : Ti^(2+), V^(2+), Cr^(3+), Mn^(2+), Fe^(2+), Co^(2+), Ni^(2+) and Cu^(2+) . Indicate how would you expect the five 3d orbitals to be occupied for these hydrated ions (octahedral).

The diamagnetic species among the following is: Cu^(2+) , Cr^(3+), Co^(3+) , Cd^(2+)

Write down the number of 3d electrons in each of the following ions: Ti^(2+),V(2+), Cr^(3+),Mn^(2+), Fe^(2+),Fe^(3+),Co^(2+),Ni^(2+) " and " Cu^(2+) . Indicate how would you expect the five 3d orbitals to be occupied for these hydrated ions (octahedral).