UP Board Class 12 Alcohols Phenols Ethers — practice questions
18 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice UP Board Class 12 Alcohols Phenols Ethers in the app →Phenol is more acidic than ethanol because:Heating ethanol with concentrated $H_2SO_4$ at $170^\circ$C on the lab burner gives:The Williamson ether synthesis works best with:Hydroboration-oxidation of propene CH$_3$-CH=CH$_2$ on the lab gives:An ALCOHOL in which the $\mathrm{-OH}$ group is attached to a carbon bonded to ONE other alkyl group is classiThe IUPAC name of $\mathrm{(CH_3)_2CHOH}$ isThe LUCAS REAGENT is used to distinguish between primary, secondary, and tertiary alcohols. It consists ofThe HYDRATION of propene ($\mathrm{CH_3{-}CH{=}CH_2}$) with $\mathrm{H_2O}/\mathrm{H}^+$ follows Markovnikov'sThe reaction of ethanol with sodium metal producesThe acidity (Brønsted acidity) order of the following isEthanol heated with concentrated $\mathrm{H_2SO_4}$ at $443\,\text{K}$ (170°C) gives mainlyThe PHENOXIDE ion is more STABLE than the ethoxide ion becauseThe WILLIAMSON ETHER SYNTHESIS prepares ethers by reactingThe REIMER-TIEMANN reaction converts phenol to salicylaldehyde. The reagents areWhen OXIDISED with strong oxidising agents like acidified $\mathrm{KMnO_4}$, the product of a PRIMARY alcohol Phenol reacts with bromine WATER (aqueous $\mathrm{Br_2}$) at room temperature to giveEthanol reacts with $\mathrm{PCl_5}$ to give which set of products?The KOLBE reaction converts phenol (in the form of sodium phenoxide) into salicylic acid. The conditions and k