Metals and Non-metals

1

State two ways to prevent the rusting of iron.

2

What is reactivity series? How does the reactivity series of metals help in predicting the relative activities of various metals?

3

Suggest different chemical processes used for obtaining a metal from its oxides for metals in the middle of the reactivity series and metals towards the top of the reactivity series. Support your answer with one example each.

4

List in tabular form any three chemical properties on the basis of which metals and non-metals are differentiated.

5

How is copper extracted from its sulphide ore? Explain the various steps supported by chemical equations. Draw labelled diagram for the electrolytic refining of copper.

6

Write the steps involved in the extraction of pure metals in the middle of the activity series from their carbonate ores.