Chemistry paragraph 

                      Write in the Hindi 


There are several methods for determining the equivalence point.
 the simplest method is to add to the solution a dye that shows change in colour at the equivalent point. such dyes are called indicators the indicators helps to determine the end point by showing changes in colour for example when phenolphthalein is added to the basic solution, it's gives pink colour when this  solution titrated against and an acid
 solutions, the end point is indicated by disappearance of pink colour.