Question

8.Three liquids are given to you. One is hydrochloric acid, another is sodium hydroxide and third is a sugar solution. How will you identify them? You have only turmeric indicator.

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Answer 1

Answer:

Here below is your answer:-

a. Place a drop of each liquid on turmeric indicator. The solution which changes  the colour of the indicator to red is basic in nature, i.e., it is sodium hydroxide.

b. Now add sodium hydroxide with the other two liquids separately to get two different mixtures. One mixture contains sodium hydroxide and sugar solution  the second is sodium hydroxide and hydrochloric acid.

c. One by one place the drop of each mixture on turmeric indicator. The mixture  that changes the colour of indicator to red colour contains neutral sugar  solution.

d. While the mixture which does not show any colour change in indicator

contains hydrochloric acid which was neutralised on addition of sodium

hydroxide.

Explanation: