Question

Dorji has a few bottles of soft drink in his restaurant. But, unfortunately, these are not labelled. He has to serve the drinks on the demand of customers. One customer wants acidic drink, another wants basic and third one wants neutral drink. How will Dorji decide which drink is to be served to whom?

Plz give the answer friends....

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Answer 1

Answer:

This could be done by using the universal indicator of pH.

✔If pH comes out to be less than 7 , drink is acidic.

✔If pH is equal to 7 , drink is neutral.

✔If pH is more than 7 , drink is basic.

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It can also be done by using litmus paper.

✔If colour changes from blue to red, it is acidic.

✔If colour changes from red to blue, it is basic.

But second method isn't helpsful as much as it doesn't give the nature of neutral solution.

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