Water

• • The purest form of natural water is rainwater.
  • The impure form of natural water are river and lakes.
• What is potable water?

  Potable water is water that is fit for human consumption and for drinking purposes.
• Characteristics of potable water?

  Potable water should be clear, colourless & odourless.

  It should be free from suspended impurities, harmful chemicals & salts such as urea & cyanides
• Why water is a universal solvent?

  Water dissolves almost every common substance and is called a universal solvent.

  Water has the ability to dissolve large substances such as salt, sugar, etc.

  It also dissolves a large number of gases such as ammonia.
• What is solute?


  A substance which dissolves in the solvent i.e. liquid so as to form a solution is called solute
• What is solvent?

  The liquid or medium which allows the solute to dissolve in it so as to form a solution is called a solvent
• What is solution?

  The homogenous mixture of solute in solvent is called a solution