A strip of metal X is dipped in the blue coloured salt solution `YSO_(4)` . After some time, a layer of metal Y from the salt solution is formed on the surface of metal strip. X metal Z 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_(4)`.
(d) What type of chemical reaction takes place when metal X reacts with salt solution `YSO_(4)` ? Write the equation of the chemical reaction involved.
(e) Name the alloy Z.

Answer

(a) Zinc (Zn) (b) copper (Cu) (c) Copper sulphate `(CuSO_(4))` )(d) Displacement reaction, `CuSO_(4)(aq) + Zn (s) to ZnSO_(4)(aq) + Cu(s) (e) Brass`