A shopkeeper has a few bottles of soft drinks in his shop. But, unfortunately, these are not
labelled. He has to serve drink's on the demand of customers. One customer wants acidic drink;
another wants basic and third one wants neutral drink. How can you help the shopkeeper to
decide which drink is to be served to whom?
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Answer:
if by using litmus paper
Explanation:
if drink change blue litmus paper to red then drink is acidic in nature
if it change litmus paper red to blue then it is basic in nature
if there is no change then drink is neutral
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