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The results of reactions of metals A, B, C, D, E with different solutions are given in the table below. Observe the table and write answers.MetalSolutionFeSO4CuSO4ZnSO4AgNO3Al(SO4)3ANo reaction No reactionNo reactionA layer is formedNo reactionBAn ashbrown layersubstancesettled onthe metalA lightbrown layeris formed on the metal No reactionA layer is formedNo reaction CNo reactionNo reactionNo reactionNo reactionNo reactionD No reaction–No reactionA layer is formed on the metal No reaction E–A light brown layer is formedFresh layer is formedFresh layer is formedNo reaction (a) Which is the highly reactive metal ? Why? (b) Which is the least reactive metal ? Why? (c) Which metals form brown layers ? (d) Arrange the metals A, B, C, D, E in the order of thier reactivity |
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Answer» (a) Metal 'E' is more reactive among all the metals given because it displaces all the elements from the compounds given in the table. (b) Metal 'C' is the least reactive metal because it does not displace any other metal from the compounds given in the table. (c) Metals B and E will form brown layer. (D) The ascending order is as follows C < A < D < B < E. |
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