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Name some common metals that we use in our daily life.
On which basis, materials can be divided?
Among the following which are metals?
Iron, Sulphur, Nitrogen, Copper, Oxygen, Aluminium
Why we cannot hold hot metal pan directly?
Connecting wires are made up of which metals and why?
Why we don’t use non-metals for making jewellery?
Name a non-metal which is very hard.
How do metal oxides differ from non-metal oxides?
What happens when metals react with dilute acids?
Which acid is produced when sulphur dioxide reacts with water?
What happens when magnesium reacts with oxygen? What is the nature of the product?
Name two metals which are used to make ornaments.
Can copper displace zinc from its salt solution?
What is the colour of the solution formed when copper sulphate reacts with zinc?
When sulphur burns in air, it combines with oxygen in air to form sulphur dioxide gas. Is it acidic in nature?
Name two metals which are used for making cooking utensils and water boilers for factories.
Which metal is used to galvanise iron to protect it from rusting?
State two physical properties on the basis of which metals can be distinguished from non-metals.
Are the oxides of metals acidic or basic?
Write the name of a metal which can react with steam.
Pencil lead is made up of which material?
Write the name of a liquid non-metal.
Bells used in temples are not made up of wood. Why?
Write a word equation for heated iron and steam.
Phosphorus is kept in water. Why?
What is the nature of oxides formed
(a) when metals combine with oxygen?
(b) when non-metals combine with oxygen?
Give reason why copper cannot displace zinc from its salt solution.
(i) Malleability (ii) Ductility
(b) Name a non-metal which is very hard.
Give reasons, why
(a) immersion rods for heating liquids are made up of metallic substances?
(b) Non metals cannot be used for making bells?
Distinguish between metals and non-metals on the basis of their chemical properties.
State five uses of each, metals and non-metals.
Write the conditions under which rusting takes place.
Sodium is more reactive than iron. How can you prove it?
Write your observation when a piece of sodium is dropped in water.