(a)Out ofAg_(2)SO_(4), CuF_(2), MgF_(2) and CuCl, whichcompound will be coloured and why ? (b) Explain :(i)CrO_(4)^(2-) is a strong oxidizing agent whileMnO_(4)^(2-) is not (ii) Zr and Hf have identical sizes. (iii) The lowestoxidation state of manganese is basic while the highestis acidic. (iv)Mn (II)shows maximumparamagnetic character amongst the divalent ions of the first transition series.

(a)Out ofAg_(2)SO_(4), CuF_(2), MgF_(2) and CuCl, whichcompound will b

1.	(a)Out ofAg_(2)SO_(4), CuF_(2), MgF_(2) and CuCl, whichcompound will be coloured and why ? (b) Explain :(i)CrO_(4)^(2-) is a strong oxidizing agent whileMnO_(4)^(2-) is not (ii) Zr and Hf have identical sizes. (iii) The lowestoxidation state of manganese is basic while the highestis acidic. (iv)Mn (II)shows maximumparamagnetic character amongst the divalent ions of the first transition series.
Answer» SOLUTION :(a) `CuF_(2)` (b) (i) Cr in`CrO_(4)^(2-)` is in the highest oxidation state, i.e., `+6` while Mn in `MnO_(4)^(2-)` is in oxidation state`+6` and its most STABLE oxidation state is`+7` (ii) due to lanthanoil contraction (iv)`Mn^(2+)` has `3d^(5) ` CONFIGURATION