Theory:

Common name
 
Chemical name & its constituents
Uses
Waterwater-4998513_1920.png
Hydrogen oxide
  • Hydrogen
  • Oxygen
  • For drinking
  • Solvent
Table saltsalt-3285024_1280.jpg
Sodium chloride
  • Sodium
  • Chloride
  • Essential component of our everyday diet.
  • Preservative agent for meat and fish.
Sugar4905066798_9cc1912239.jpg
Sucrose
  • Carbon
  • Hydrogen
  • Oxygen
  • For making sweets, toffees and fruit juices.
Baking sodabaking soda.jpg
Sodium bicarbonate
  • Sodium
  • Hydrogen
  • Carbon
  • Oxygen
  • Fire extinguisher.
  • Preparation of baking powder.
  • Preparation of cakes and bread.
Washing sodawashing-powder-1500058_1280.jpg
Sodium carbonate
  • Sodium
  • Carbon
  • Oxygen
  • Cleaning agent in soap.
  • Softening of hard water.
Bleaching powdershutterstock_1191587458.jpg
Calcium oxychloride
  • Calcium
  • Oxygen
  • Chlorine
  • Bleaching agent.
  • Disinfectant.
  • Sterilisation of drinking water.
Quick limeshutterstock_1326782264.jpg
Calcium oxide
  • Calcium
  • Oxygen
  • For manufacturing cement and glass.
Slaked limeshutterstock_1611202813.jpg
Calcium hydroxide
  • Calcium
  • Hydrogen
  • oxygen
  • Whitewashing of walls.
Limestoneshutterstock_1632986407.jpg
Calcium carbonate
  • Calcium
  • Carbon
  • Oxygen
  • For preparing chalk pieces.
 
Additional!
  
Common name
Compounds
Formula
Blue VitriolCopper sulphate\(CuSO_4·7H_2O\)
Green VitriolFerrous sulphate\(FeSO_4·7H_2O\)
SaltpetrePotassium nitrate\(KNO_3\)
Oil of VitriolSulphuric acid\(H_2SO_4\)
GypsumCalcium sulphate\(CaSO_4\)
Plaster of parisCalcium sulphate
hemi hydrate
\(CaSO_4. H_2O\)
Muriate of potashPotassium chloride\(KCl\)
Reference:
file:///C:/Users/user/Desktop/Books/8th_Science/TN/8th_Std_Term_I_Science_EM.pdf
https://cdn.pixabay.com/photo/2020/04/03/11/28/water-4998513_960_720.png
https://cdn.pixabay.com/photo/2018/04/02/20/17/salt-3285024_1280.jpg
https://live.staticflickr.com/4123/4905066798_9cc1912239.jpg
https://cdn.pixabay.com/photo/2016/07/06/06/53/washing-powder-1500058_1280.jpg
https://www.shutterstock.com/da/image-photo/childrens-white-tshirt-dirty-spots-stain-1191587458
https://www.shutterstock.com/da/image-photo/quicklime-on-white-background-1326782264
https://www.shutterstock.com/da/image-photo/construction-bucket-lime-on-site-1611202813
https://www.shutterstock.com/da/image-photo/large-chunks-white-food-grade-natural-1632986407