Question 1 Name one non-metal which is essential for maintaining life? Question 2 Name one non-metal used for making fertilisers? Question 3 Which non-metal is used in water purification? Question 4 Name non-metal used to make purple coloured solution which is applied on cuts and wounds as on antiseptic? Question 5 Name 2 non-metals which are used in … [Read more...] about Uses of non-metals
Material:Metals and Non-metals
Uses of metals
Question 1 Name 2 metals which are used for making cooking utensils? Question 2 Name 2 metals which are used for making electric wires? Question 3 Name 1 metals which is used in thermometers? Question 4 Which metal is used to galvanise iron to protect it from rusting? Question 5 Name the metals which is used to make thin foils fro packaging? Question 6 Name 2 … [Read more...] about Uses of metals
Displacement reaction
Question 1 What are displacement reactions? Question 2 Which metal is more reactive:iron or zinc? Question 3 What would you observe when a strip of zinc is dipped in copper sulphate solution? Question 4 What would you observe when a strip of iron is dipped in copper sulphate solution? Question 5 What would you observe when a strip of zinc is dipped in iron sulphate … [Read more...] about Displacement reaction
Reaction of metals and non-metals with acid
Question 1 Why should the foodstuffs like orange juice, pickles, chutney should not be kept in iron or aluminum containers? Question 2 Name the gas evolved when metals react with acid? Question 3 What happens when magnesium metal react with hydrochloric acid? Question 4 What happens when zinc metal react with hydrochloric acid? Question 5 What happens when iron … [Read more...] about Reaction of metals and non-metals with acid
Reaction of metals and non-metals with a base
Question 1 What happen when metals react with a base? Question 2 Name the gas evolved when metals react with a base? Question 3 Define the term reactivity series of metals? Question 4 Name the most reactive metal? Question 5 Name the least reactive metal? Question 6 What happen when aluminium react with a base? Reaction of metals and with a base Some metals … [Read more...] about Reaction of metals and non-metals with a base