Dodge has a few bottles of soft drink in his restaurant. but unfortunately these are not labelled. he has to serve the dreams all the demand of customers. one customer want a acidic drink another wants the basic and third one wants neutral drink. how will the decided which drink is to be a served to home?
Dorji can decide with the help of litmus paper. (i) The drink which would turn a red litmus to blue would be basic. (ii) If the drink turns a blue litmus to red would be acidic. (iii) The drink which would not affect both red and blue litmus would be neutral.
