Question

- | Question 2 Part of a reactivity series is: increasing reactivity (a) (c) sodium calcium magnesium aluminium zinc iron hydrogen copper Carbon is used in blast furnaces to obtain iron and zinc from their oxides, but electrolysis has to be used to obtain aluminium from its oxide. Draw an arrow on the reactivity series above to show where carbon fits into the series. (b) Predict the method of extraction used to obtain calcium from its ore and explain your answer. The formula for zinc oxide is ZnO. Write a balanced equation for the extraction of zinc in the blast furnace. (1) (2) (2) (Total 5 marks) ​

Answer 1

a. The reactivity series is:

increasing reactivity:

(c) sodium

calcium

magnesium

aluminium

zinc

iron

hydrogen

copper

Carbon fits into the series between iron and hydrogen.

b. The method of extraction used to obtain calcium from its ore is electrolysis. This is because calcium is too reactive to be extracted by reduction with carbon.

c. The balanced equation for the extraction of zinc in the blast furnace is:

ZnO + C → Zn + CO

I hope this helps!