5SnCl2 + 2KMnO4 + 26HCl → 5H2[SnCl6] + 2MnCl2 + 2KCl + 8H2O
Tin(II) chloride react with potassium permanganate and hydrogen chloride to produce hydrogen hexachloridostannate(IV), manganese(II) chloride, potassium chloride and water. Hydrogen chloride - concentrated solution.