Question

a shopkeeper has a few bottles of soft drinks in his restaurants ot labelled . one customer wants acidic drink another wants basic and the other a neutral drink . How will the keeper decide which drink is to be to whom

Answer 1

The shopkeeper can test the drinks with any indicator such as litmus solution
If it turns red its acid
If it turns blue its base
No colour change indicates neutral solution

Answer 2

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.

$\bf{Hope\:it\:helps}$