20.What is Rose metal? [A] It is an alloy of Nickel, Tin and Zinc [B] It is an alloy of Bismuth, Copper and Palladium [C] It is an alloy of Palladium, Tin and Lead [D] It is an alloy of Bismuth, Tin and Lead Show Answer
Rose's metal consists of 50% bismuth, 25–28% lead and 22–25% tin. Its melting point is between 94 and 98 °C (201 and 208 °F). The alloy does not appreciably contract or expand on solidification, this characteristic being a function of its bismuth percentage.
