acids and base and their properties
Acids:-- An acid is a molecule or ion that is capable of donating a proton that is hydrogen ion (H + ) or capable of formation of a covalent bond with an electron pair. Acid:-- In the water solution, any substances whose tastes are sour and whose dissolve in water to release H + ions and reacts with bases to form salts and promotes certain chemical reactions and also change the colour of certain indicators. This is known as acid. Properties of acids:-- Acids is sour in taste Acids react with base to form salt Acid reacts with metal to release hydrogen ions H + The pH value is less than 7 Acid converts blue litmus paper to red litmus paper Acid have tendency to corrode the metal surfaces Bases:-- Bases are the substances which dissociates solution to form hydroxide ion OH - and which can donates electrons and accept protons. Properties of bases :-- Bases are bitter in taste It has pH value is greater than 7