BASES AND ALKALIES IN OUR DAILY LIFE

                                              BASES
  • Never taste or touch any unknown chemicals. Substances such as baking soda does not taste sour. It is BITTER IN TASTE. It shows it has no acid in it.                                                            
  • If you rub its solution with your fingers, it is soapy. Substances like these which are bitter in taste and are soapy on touching are known as bases.                                                                        
  • The nature of such substances is said to be basic. Bases are oxides or hydroxides of metal. They are chemically opposite to acids.                                                                                                                                        
  • Some bases like caustic soda [ NaOH] and caustic potash [KOH] are very corrosive. Bases give hydroxyl ions when treated with water                                                                                                          
  • Bases which are soluble in water are called ALKALIS. The hydroxides of sodium and potassium are example of alkalies. They are water-soluble bases.                                                               
  • ALL ALKALIES ARE BASES, BUT NOT ALL BASES ARE ALKALIES:                                                    
  • The word alkali is derived from the Arabic word 'alquili' which means plant ashes.                                
  • Ashes of plants are composed of mainly sodium and potassium carbonates.                                                        
  • Some common bases used in our daily life.                                                                                                     
                      NAME
        OTHER NAME
QUICK LIME
CALICIUM OXIDE
POTASSIUM HYDROXIDE
CAUSTIC SODA
CALCIUM HYDROXIDE
SLAKED LIME
SODIUM HYDROXIDE
CAUSTIC SODA
MAGNESIUM HYDROXIDE
MILK OF MAGNESIA
       NAME OF BASE
     FOUND IN
CALCIUM HYDROXIDE
LIME WATER
AMMONIUM HYDROXIDE
WINDOW CLEANER
SODIUM HYDROXIDE/POTASSIUM HYDROXIDE
SOAP
MAGNESIUM HYDROXIDE
ANTACID

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