Question

A student has prepared solutions of acid and base and forgot to lable them and litums paper is also not available in laboratory

Answer 1

Answer:

In the absence of litmus paper, a reagent phenolphthalein can be used. The solution which develops pink colour with phenolphthalein is a base and the other is acid.

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Answer 2

We can differentiate acid and base by using other indicators either than litmus paper such as turmeric juice,cabbage juice etc.

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