Question

10th class chemistry how will you distinguish two test tubes A and B containing HCL solution and NaOH respectively by
using dilute venilla essence

Answer 1

we put the vanilla essence on both the test tubes separately if the characteristic smell of vanilla essence is determined then the test tube contains HCl solution and if its characteristic smell is not determined the test tube contain NaOHsolution



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Answer 2

Answer:

Explanation:

Vanilla essence is an olfactory indicator. So, its smell is different in acid and basic media which can be detected easily by a visually impared student. Vanilla extract has a characteristic pleasant smell.