question_answer

    To distinguish between salicylic acid and phenol one can use

A)  \[NaHC{{O}_{3}}\]solution

B) \[5%\text{ }NaOH\]solution

C)  neutral\[FeC{{l}_{3}}\]

D)  bromine water

Correct Answer: A

Solution :

                Key Idea:\[NaHC{{O}_{3}}\]reacts with\[-COOH\]group to give out\[C{{O}_{2}}\]while other groups do not react with it \[salicylic\text{ }acid+NaHC{{O}_{3}}\xrightarrow[{}]{{}}effervescence\] of \[C{{O}_{2}}\] \[Phenol+NaHC{{O}_{3}}\xrightarrow[{}]{{}}No\text{ }reaction\] \[\therefore \]\[NaHC{{O}_{3}}\]is used to distinguish between phenol and salicylic acid.