Question

Few characteristics of four different metals A, B, C and D are given below: A: Reacts violently with cold water and evolves hydrogen gas. B: Found in nature in free state and does not react with water at any temperature. C:lts oxide is amphoteric in nature. D: Reacts with very dilute nitric acid to evolve H2 gas. A, B, C and D respectively can be O One/More Correct Answer(s) А. Na, Ag, Al and Mg В. K, Au, Zn and Mn C. Mg, Ag, Sn and cu D. Ca, Cu, Al and Mn

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Answer 1

Few characteristics of four different metals A, B, C and D are given below: A: Reacts violently with cold water and evolves hydrogen gas. B: Found in nature in free state and does not react with water at any temperature. C:lts oxide is amphoteric in nature. D: Reacts with very dilute nitric acid to evolve H2 gas. A, B, C and D respectively can be O One/More Correct Answer(s) А. Na, Ag, Al and Mg В. K, Au, Zn and Mn C. Mg, Ag, Sn and cu D. Ca, Cu, Al and Mn

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Answer 2

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