Metals and Non-metals

Give an example of a metal which can be easily cut with knife.

• Mercury

• Sodium

• Copper

• Iron

Which gas is produced when dilute hydrochloric acid is added to a reactive metal?

• Nitrogen

• Oxygen

• Hydrogen

• None of the above

Which of the following two metals are found in free state in nature?

• Gold, Silver

• Sodium, Platinum

• Calcium, Silver

• Gold, Aluminium

_____________ is an alloy of mercury.

Write the electron dot structure of Sodium and Oxygen.

What are amphoteric oxides? Give two examples.

Give reason why aluminium is used to make utensils for cooking although it is a highly reactive metal.

In the electrolyting refining of metal M, what would you take as an anode, cathode and electrolyte?

Write three differences between metals and non-metals on the basis of their chemical properties.