3. Acids and Bases

Given the following synthetic sequence: 1-bromopropane is treated with aqueous ${\mathrm{Na}}_{\mathrm{OH}}$ followed by acidification, predict the major organic product.

Which of the following best describes the mechanism for the conversion of $R_{\mathrm{Br}}$ (an alkyl bromide) to $R_{\mathrm{OH}}$ (an alcohol) using aqueous ${\mathrm{Na}}_{\mathrm{OH}}$ under reflux conditions?

Which of the following best describes the mechanism of a $\mathrm{Diels}-\mathrm{Alder}$ reaction, a classic example of a pericyclic reaction?

Which of the following best describes the first step in the curved arrow pushing mechanism for a Michael (conjugate) addition reaction between ${\mathrm{CH}}_2\mathrm{COCH}3$ (acetone) and ${\mathrm{CH}}_2\mathrm{CHCO}{2}_{\mathrm{Et}}$ (ethyl acrylate) under basic conditions?

Which of the following best describes the mechanism of the reaction between ${\mathrm{CH}}_3\mathrm{Br}$ and $\mathrm{OH}-$ in aqueous solution?

Which of the following best describes the term 'reaction mechanism' in organic chemistry?

Which of the following best describes the correct curved arrow notation for a hydride shift in a carbocation rearrangement during an organic reaction mechanism?

Which of the following is the major organic product formed in the reaction of ${\mathrm{CH}}_3\mathrm{CH}=\mathrm{CH}2$ (propene) with $\mathrm{HBr}$ under standard conditions (no peroxides)?

Which of the following best completes the electron-pushing mechanism for the decarboxylation of $R_{\mathrm{COOH}}$ (a carboxylic acid) to form $RH$ and $\mathrm{CO}{2}_{}$ under heating conditions?

Which of the following correctly represents the two major products formed in the reaction of $2_{\mathrm{-bromobutane}}$ with ${\mathrm{Na}}_{\mathrm{OEt}}$ in $\mathrm{EtOH}$?

Which of the following substrates is most likely to undergo an $S_{\mathrm{N}}1$ substitution mechanism under typical conditions?

Which of the following best describes the structure of the tetrahedral intermediate initially formed during the nucleophilic addition of a ${\mathrm{HO}}^{-}$ ion to an aldehyde?

Which of the following best describes the most likely sequence of steps in the mechanism of an S$N_1$ reaction?

Which of the following best describes the stepwise mechanism for the acid-catalyzed hydration of $C_2{H}_4$ (ethylene) to form ethanol?

Which of the following best describes the purpose of adding curved arrows to the reactants in an organic reaction mechanism?