Why does copper not replace hydrogen from acids ?
The element exhibiting most stable $ + \,2$ oxidation state among the following is
Four successive members of the first row transition elements are listed below with atomic numbers. Which one of them is expected to have the highest $E^o_{M^{3+} /M^{2+}}$ value ?
When an acidified solution of ferrous ammonium sulphate it treated with potassium permanganate solution, the ion which is oxidised is
Which of the following metal is present in Brass, Bronze and German silver ?
Which of the following ions has the maximum magnetic moment