Question

.Sahil has three bottles containing clear liquids in them and marked A,B,C respectively. How can he find the presence of acid ,base and salt in the bottles ,if he has only blue litmus paper .

Answer 1

when u place the blue litmus paper to acid it turns red,which means that it is acid.Again if u dip that red litmus paper to base,it turns blue.But if u don't find any difference.It means the solution is neutral.
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