Chemistry - ALCOHOL & ETHER Question with Solution | TestHub
ChemistryALCOHOL & ETHERREACTIONS OF ALCOHOLS and ETHERSMedium2 minPYQ_2026
ChemistryMediumsingle choice
The functional group that can be identified through phthalein dye test is :NEET 2026 (Cancelled)
Options:
Answer:
B
Solution:
The phthalein dye test is a characteristic test used for the identification of the phenolic functional group.
When a phenol is heated with phthalic anhydride in the presence of concentrated sulfuric acid, it undergoes a condensation reaction to form a colorless compound, phenolphthalein.
Upon adding an alkaline solution like dilute sodium hydroxide (NaOH) to this mixture, a characteristic pink or red color is produced due to the formation of the phenolphthalein anion.
Therefore, the functional group identified through the phthalein dye test is phenolic.
Answer: Phenolic
Stream:NEETSubject:ChemistryTopic:ALCOHOL & ETHERSubtopic:REACTIONS OF ALCOHOLS and ETHERS
⏱ 2mℹ️ Source: PYQ_2026
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