Question

Q1 A student adds zinc and silver to two different test tubes containing an equal amount

of copper sulphate solution. The student observes that the colour of the solution in the

test tube with lead changes .. (5)

(a) Why does colour of the solution in the test tube with zinc change?

(b) What type of reaction takes place in test tube containing zinc ?

(c) Write the balanced chemical equation with state symbol for the chemical change​

Answer 1

Answer:

Zinc is more reactive than copper, as zinc displaces copper from the copper sulphate and form zinc sulphate, as a result, the blue colour solution turns

Explanation:

Hope it helps u

Answer 2

Answer:

a)Because zinc is more reactive than copper and it lies above copper in reactivity series.

b)Displacement reaction

c)Zn + CuSO4 ---> ZnSO4 + Cu