5K2[PtCl4] + 2KMnO4 + 16HCl → 5K2[PtCl6] + 2MnCl2 + 2KCl + 8H2O
Potassium tetrachloridoplatinate(II) react with potassium permanganate and hydrogen chloride to produce potassium hexachloridoplatinate(IV), manganese(I) chloride, potassium chloride and water. Hydrogen chloride - diluted solution.