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A strip of metal X is dipped in a blue coloured salt solution YSO4 . After some time, a layer of metal Y from the salt solution is formed on the surface of metal strip X. Metal X is used in galvanisation whereas metal Y is used in making electric wires. Metal X and metal Y together form an alloy Z. (a) What could metal X be ? (b) What could metal Y be ? (c) Name the metal salt YSO . (d) What type of chemical reaction takes place when metal X reacts with salt solution YSO4 ? Write the equation of the chemical reaction involved. (e) Name the alloy Z. |
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Answer» (b) Copper (Cu) (c) Copper sulphate (CuSO4) (d) Displacement reaction; CuSO4 (aq) + Zn (s) ZnSO4 (aq) + Cu (s) (e) Brass |
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