Look at Figure 5.1 which shows solutions taken in test tubes A,B,C and D. What colour is expected when a piece of red litmus paper is dropped in each test tube? Nature of the solutions is given in the table for your help.
Neutral substance do not change the color of any type of litmus paper.(Test tube A and D)
Acidic substances changes colour of Blue litmus to red.(test tube C)
Basic substances changes color of red litmus to blue( test tube B).
16