Question

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 china rose indicator.

Answer 1

Answer:

the concept behind China rose is

• it turns blue-green when exposed to a base or alkali
• it turns dark pink or magenta when exposed to acid
• it does not change its colour when exposed to a neutral solution.

Explanation:

and and we all know that

• HCl is an acid
• NaOH is base
• sugar-water solution is neutral

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