Grade 8- Metals and non-metals- Revision

What do you mean by displacement reaction?

________is used for packing food

Process of coating metals with zinc is called_________

Why are electrical cables made from copper?

What are noble metals?

Name the ingredient of the alloy Stainless Steel

Name two major non-metals which are present in fertilisers and enhance the growth of plants.

List any three uses of Hydrogen.

Briefly explain any two methods to prevent corrosion of metals.

If you are an engineer constructing a multi-storey building. Which alloy would you be extensively using and why?