Carboxylic Acids
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Questions and Answers

What is the primary difference between oils and fats?

  • Their solubility in water
  • Their melting points
  • Their specific gravity
  • The nature of the monocarboxylic acid present in the glyceride (correct)

    • What is the approximate percentage of oleic acid in lard?

  • 45% (correct)
  • 5%
  • 32%
  • 18%

    • What is the purpose of hydrolysis with alkali in the processing of oils and fats?

  • To derive their names from the natural source
  • To convert oils to fats
  • To separate glycerol from fatty acids (correct)
  • To create soaps and detergents

    • Which of the following acids is NOT a component of lard?

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

    What is the primary use of the fatty acids derived from oils and fats?

    <p>Making soaps, lubricants, and detergents</p> Signup and view all the answers

    What is the reaction product of C15H31COOC16H33 with NaOH?

    <p>C16H33OH and C15H31COONa</p> Signup and view all the answers

    What is the purpose of using waxes in manufacturing processes?

    <p>To create polish and ink formulas</p> Signup and view all the answers

    What is the characteristic of sodium palmitate?

    <p>Do not produce OH ions on hydrolysis</p> Signup and view all the answers

    What is the purpose of using sodium alkyl benzene sulphonates?

    <p>To act as a good detergent</p> Signup and view all the answers

    What is the characteristic of quaternary ammonium salts?

    <p>Have long chain alkyl group</p> Signup and view all the answers

    What is the primary difference between oils and fats in terms of their physical state?

    <p>Oils are liquids at room temperature, while fats are semi-solids or solids.</p> Signup and view all the answers

    What can be used to identify pure fats and oils?

    <p>Their melting points, specific gravity, and refractive index</p> Signup and view all the answers

    What is a characteristic of animal fats that distinguishes them from vegetable fats?

    <p>They contain cholesterol</p> Signup and view all the answers

    What type of reaction do fats and oils undergo?

    <p>Reactions of both carbon-carbon double bonds and ester groups</p> Signup and view all the answers

    Why may a substance be classified as a fat in one season and an oil in another?

    <p>Because of its physical state, which depends on climate and weather</p> Signup and view all the answers

    What is the product formed when ethyl acetate reacts with NaOH?

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

    What is the catalyst commonly used in the catalytic hydrogenation of ester?

    <p>Copper chromate (CuO.CuCr2 O4 )</p> Signup and view all the answers

    What is the reaction product of ethyl acetate with ammonia?

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

    What is the reduction of ester in the presence of Na / C2 H 5 OH known as?

    <p>Bouveault Blanc reduction</p> Signup and view all the answers

    What is the product formed when ethyl acetate reacts with hydrazine?

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

    What is the product of the reaction between benzoic acid and lithium aluminum hydride?

    <p>benzyl alcohol</p> Signup and view all the answers

    What is the condition necessary for the esterification of aromatic acid?

    <p>presence of a mineral acid</p> Signup and view all the answers

    What is the reaction in which benzoic acid reacts with sodium hydroxide to form a salt and water?

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

    What is the effect of an ortho substituent on the rate of esterification of aromatic acid?

    <p>it decreases the rate</p> Signup and view all the answers

    What is the product of the reaction between benzoic acid and manganese dioxide in the presence of carbon monoxide?

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

    What is the reaction product of C6H5CHCl2 with H2 and CHCOONa?

    <p>C6H5CH=CHCOOH</p> Signup and view all the answers

    What is the oxidation product of C6H5CH=CHCH2OH?

    <p>C6H5CH=CHCOOH</p> Signup and view all the answers

    What is the reaction product of C6H5CHO with CH3COOC2H5?

    <p>C6H5CH=CHCOOC2H5</p> Signup and view all the answers

    What is the geometrical isomerism exhibited by C6H5CH=CHCOOH?

    <p>cis-trans isomerism</p> Signup and view all the answers

    What is the physical state of C6H5CH=CHCOOH at room temperature?

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

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