Carboxylic Acids and Related Compounds Quiz
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Questions and Answers

Which technique is used to measure the mass-to-charge ratio of ions in a sample?

  • Nuclear magnetic resonance spectroscopy
  • Infrared spectroscopy
  • Mass spectrometry (correct)
  • Gas chromatography

    • What is the base peak in a mass spectrum?

  • The most abundant peak in the spectrum (correct)
  • The peak with the highest relative abundance
  • The peak with the lowest m/z ratio
  • The peak with the highest m/z ratio

    • What is the relationship between wavelength and frequency of electromagnetic radiation?

  • They are inversely proportional (correct)
  • They are directly proportional
  • There is no relationship between them
  • It depends on the type of electromagnetic radiation

    • Which type of spectroscopy is used to study the stretching and bending of chemical bonds?

    <p>Infrared spectroscopy</p> Signup and view all the answers

    What is the main information obtained from the 1H NMR spectrum?

    <p>The number of signals</p> Signup and view all the answers

    What is the relationship between coupling constants and the number of peaks in a splitting pattern?

    <p>They are directly proportional</p> Signup and view all the answers

    Which type of carbonyl compound is reduced to an alcohol or a carboxylic acid by catalytic hydrogenation?

    <p>Ketone</p> Signup and view all the answers

    Which of the following is a characteristic of carboxylic acids?

    <p>They can form resonance-stabilized carboxylate anions</p> Signup and view all the answers

    What is the IUPAC name for an acid chloride?

    <p>Butanoyl chloride</p> Signup and view all the answers

    Which of the following is a characteristic of esters?

    <p>They can undergo nucleophilic acyl substitution reactions</p> Signup and view all the answers

    What is the general reaction of carboxylic acids?

    <p>Acyl substitution reactions</p> Signup and view all the answers

    What is the mechanism of action of β-lactam antibiotics?

    <p>Inhibition of cell wall synthesis</p> Signup and view all the answers

    What is the equilibrium constant for the keto-enol tautomerization?

    <p>Depends on the specific compound</p> Signup and view all the answers

    What is the favored condition for the formation of kinetic enolates?

    <p>All of the above</p> Signup and view all the answers

    Which reagent is commonly used for the reduction of amides to amines?

    <p>LiAlH4</p> Signup and view all the answers

    What is the general mechanism for the nucleophilic addition of Grignard reagents to aldehydes and ketones?

    <p>1,2 addition</p> Signup and view all the answers

    Which of the following is NOT a limitation of organometallic reagents?

    <p>Limited availability of reagents</p> Signup and view all the answers

    What is the IUPAC name for the compound CH3-CO-CH2-CH3?

    <p>Butanone</p> Signup and view all the answers

    Which of the following is NOT a physical property of carboxylic acids?

    <p>Low melting points</p> Signup and view all the answers

    What is the general mechanism for the formation of acetals from alcohols and aldehydes or ketones?

    <p>1,2 addition</p> Signup and view all the answers

    Which of the following is NOT a type of carboxylic acid or its salt mentioned in the text?

    <p>Sodium benzoate</p> Signup and view all the answers

    Which of the following reactions involves the addition of enolates with esters and nitriles?

    <p>Enolate addition with esters and nitriles</p> Signup and view all the answers

    What is the product formed in the decarboxylation of malonic esters?

    <p>1,3 diacid</p> Signup and view all the answers

    Which type of synthesis involves the mechanism of deprotonation, alkylation, hydrolysis, and decarboxylation?

    <p>Malonic ester synthesis</p> Signup and view all the answers

    What is the product formed in the dehydration of aldol product?

    <p>Enol</p> Signup and view all the answers

    Which reaction involves the formation of β-dicarbonyl compounds?

    <p>Claisen reaction</p> Signup and view all the answers

    What is the product formed in the Michael reaction?

    <p>Ketone</p> Signup and view all the answers

    Which reaction involves the retro aldol reaction?

    <p>Aldol reaction</p> Signup and view all the answers

    What is the product formed in the crossed aldol reaction?

    <p>Ketone</p> Signup and view all the answers

    What is the product formed in the Robinson annulation?

    <p>Enolate</p> Signup and view all the answers

    Which reagent is commonly used for the reduction of amides to amines?

    <p>Lithium aluminum hydride (LiAlH4)</p> Signup and view all the answers

    What is the IUPAC name for the compound CH3-CO-CH2-CH3?

    <p>Butanone</p> Signup and view all the answers

    What is the product formed in the Michael reaction?

    <p>Carboxylic acid</p> Signup and view all the answers

    What is the general reaction of carboxylic acids?

    <p>Nucleophilic substitution</p> Signup and view all the answers

    Which technique is used to measure the mass-to-charge ratio of ions in a sample?

    <p>Mass spectrometry</p> Signup and view all the answers

    What is the main information obtained from the 1H NMR spectrum?

    <p>Chemical shifts of hydrogen atoms</p> Signup and view all the answers

    What is the product formed in the Robinson annulation?

    <p>Cyclic ketone</p> Signup and view all the answers

    Which technique is used to measure the mass-to-charge ratio of ions in a sample?

    <p>Mass spectrometry</p> Signup and view all the answers

    What is the main information obtained from the 1H NMR spectrum?

    <p>Number of signals</p> Signup and view all the answers

    What is the general mechanism for the nucleophilic addition of Grignard reagents to aldehydes and ketones?

    <p>Electrophilic addition</p> Signup and view all the answers

    Which of the following is NOT a physical property of carboxylic acids?

    <p>Strong odor</p> Signup and view all the answers

    What is the product formed in the decarboxylation of malonic esters?

    <p>Ketone</p> Signup and view all the answers

    What is the relationship between wavelength and frequency of electromagnetic radiation?

    <p>Inversely proportional</p> Signup and view all the answers

    What is the general reaction of carboxylic acids?

    <p>Oxidation</p> Signup and view all the answers

    Which compound is commonly used as a precursor for the synthesis of salicylic acid?

    <p>Salicin</p> Signup and view all the answers

    What is the general name for the class of organic compounds that can be prepared from carboxylic acids?

    <p>Esters</p> Signup and view all the answers

    Which of the following is a characteristic of amides?

    <p>They can be hydrolyzed to form carboxylic acids</p> Signup and view all the answers

    What is the main product formed when a carboxylic acid reacts with a strong nonnucleophilic base?

    <p>A carboxylate salt</p> Signup and view all the answers

    What is the favored condition for the formation of thermodynamic enolates?

    <p>Strong base, polar protic solvent, room temperature</p> Signup and view all the answers

    What is the product formed when an α-halo carbonyl compound undergoes an elimination reaction?

    <p>An alkene</p> Signup and view all the answers

    What is the general mechanism for the nucleophilic acyl substitution of carboxylic acids?

    <p>SN2</p> Signup and view all the answers

    Which type of reaction involves the addition of enolates with esters and nitriles?

    <p>Aldol reaction</p> Signup and view all the answers

    What is the mechanism of the Aldol reaction?

    <p>Electrophilic addition</p> Signup and view all the answers

    What is the product formed in the dehydration of aldol product?

    <p>Alkene</p> Signup and view all the answers

    What is the mechanism of the E1cB reaction?

    <p>Elimination</p> Signup and view all the answers

    What is the product formed in the decarboxylation of malonic esters?

    <p>Alkene</p> Signup and view all the answers

    Which reaction involves the retro aldol reaction?

    <p>Aldol reaction</p> Signup and view all the answers

    Which type of carbonyl compound is reduced to an alcohol or a carboxylic acid by catalytic hydrogenation?

    <p>Ketone</p> Signup and view all the answers

    Which reaction involves the formation of β-dicarbonyl compounds?

    <p>Michael reaction</p> Signup and view all the answers

    Which type of synthesis involves the mechanism of deprotonation, alkylation, hydrolysis, and decarboxylation?

    <p>Malonic ester synthesis</p> Signup and view all the answers

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