A noble metal is one which is inert and does not react with acids like HCl,HNO3,H2SO4. Select an option with a set of two noble metals.
Gold (Au); Silver (Ag)
Gold (Au); Platinum (Pt)
Iron (Fe); Platinum (Pt)
Gold (Au); Iron (Fe)
Gold (Au) and Platinum (Pt) are noble metals and are inert towards HCl,HNO3,H2SO4.
Noble metals like gold and platinum can be dissolved in :