4.) Which functional group is absent from the fever-reducing active ingredient below? CH3 HO H,CO A. aromatic В. ether C. carboxylic acid D. alcohol Keywords: functional group, carbonyl, aromatic, ether, carboxylic acid, alcohol, heteroatom, conugation, Huckel's Rule

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Q: CH3 CH3 H3C O a. ether O b. ester Oc. ketone O d: alcohol e. amine

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Q: Reagent(s): ОН CN

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Q: a. Ph OH H3O+ O 애 - Ph

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Diol

In chemistry there are so many chemical compounds that have a hydroxyl group but a chemical compound having two hydroxyl groups (-OH) is termed as a diol. It also implies the presence of two alcohols whereas polyols contain two or more than two hydroxyl groups (-OH). Glycol or 1,2-diol is an aliphatic diol that has two alcohol groups on adjacent carbon atoms. In industries, the most commonly used diol is ethylene glycol.