. Three liquids are given to you. One is hydrochloric acid


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

Best Answer

Turmeric solution turns red on coming in contact with bases. It is not affected by acids and neutral substances.

At first we will identify the base.

Samples of the given three liquids are tested by adding a small quantity of turmeric to them. The liquid in which the colour of turmeric changes from yellow to red, is a base, i.e., sodium hydroxide solution. Then, one of the remaining two unidentified solutions is added to it gradually. If the solution turns yellow again, the added liquid is hydrochloric acid (because it neutralizes the base). Otherwise the added liquid is sugar solution.

Talk to Our counsellor