A strip of metal X is dipped in a blue coloured salt solution YSO4 . After some time, a layer of metal
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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(b) Copper (Cu)
(c) Copper sulphate (CuSO4)
(d) Displacement reaction; CuSO4 (aq) + Zn (s) ZnSO4 (aq) + Cu (s)
(e) Brass
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