Question

Which elements (metals, non-metals) compounds and mixtures do we use in our day to day life?

Answer 1

Elements – non-metal

• Oxygen, nitrogen → present in air
• Hydrogen → present in water
• Silicon → in memory card
• Lithium → to make batteries
• Neon → in neon signs/lights
• Sulphur → used in water treatment, agricultural pesticides

Elements – metals

• Calcium → in milk 
• Silver, gold → used in jewellery 
• Aluminium, copper, iron → Kitchen vessels 
• Mercury → in thermometer 
• Copper → electric wires

Compounds:

• Sodium chloride → table salt 
• Sodium carbonate → washing soda 
• Sodium bicarbonate → baking soda 
• Sodium hypochloride → bleaching powder 
• Sodium hydroxide, Potassium hydroxide → in making soaps 
• Calcium oxide, Calcium hydroxide → in white washing the buildings. 
• Hydrochloric acid → in cleaning toilets 
• Sucrose → sugar used in cooking and baking.

Mixtures:

• Bhel → mixture of puffed rice, sev, groundnuts, lemon juice 
• Concrete → mixture of cement, sand and rocks 
• Salad → mixture of onion, cucumber, tomato, lettuce, etc. 
• Sherbet and saltwater are also mixtures.