Noble metals are characterized by their resistance to corrosion and oxidation in moist air, unlike most base metals. Due to their low reactivity, they are often found in pure metallic form in nature. Examples include gold, silver, platinum, palladium, rhodium, iridium, ruthenium, and osmium. Uranium and lead are reactive metals and are not considered noble metals; uranium is highly reactive and radioactive, and lead tarnishes readily in air. Brass is an alloy of copper and zinc and is not a noble metal (noble metals are elements).
Consider the following statements: 1. Noble metals are found in pure form in nature. 2. Uranium and lead are examples of noble metal. Which of the above statements is/are correct?
Asked in BPSC Prelims Exam 67th Re Exam · Topic: Metals, Minerals, Ores: Properties, Uses (Definition and classification of metals, non-metals, and metalloids)
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