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 YSO4.(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.
(a) Metal X could be Zinc (Zn).
(b) Metal Y could be Copper (Cu).
(c) The metal salt YSO4 Copper sulphate (CuSO4).
(d) It is a Displacement reaction, where one active element displaces a less reactive element from its salt solution
$\ CuSO_{4} \ ( aq) \ +\ Zn\ ( s) \ \rightarrow \ ZnSO_{4}( aq) \ +\ Cu( s)$
(e) The alloy Z is Brass.
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