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3. Samples of four metals A, B, C and D were taken and added to the following solutions one by one. The results obtained have been tabulated as follows:Zinc SulphateSilver NitrateImao il Sulphate Copper II SulphateNordrhen DisplacemenDisplacementNo ReactionNa reactionNo ReactionNo ReactionNo ReactionNo ReactionDisplacementNo Reaction |
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Answer» of four metals A, B, C and D were taken and added to the following solutions one by one. The results OBTAINED have been tabulated as shown.(i) Which is the most reactive metal?(ii) What would you observe if B is added to asolution of COPPER (II) SULPHATE?(iii) Arrange the metals A, B, C and D in the order of decreasing reactivity.(i) B is the most reactive metal. [because it gives displacement reaction with IRON (II) sulphate].(ii) When metal B is added to copper (II) sulphate solution, a displacement will take place due to which the blue colour of copper (II) sulphate solution will fade and a red-brown deposit of copper will be formed on metal B. (iii) Metal B is the most reactive, metal A is less reactive, metal C is STILL less reactive, and metal D is the least reactive. So, the decreasing order of reactivity of the metals is: B > A > C > D. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ |
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