Question:

In a set of reactions acetic acid yielded a product D. $CH_{3} COOH {->[{SOCl_{2}}]} A {->[{\text{Benzene}}][{\text{anhy} AlCl_{3}}]} B {->[{HCN}]} C {->[{H_{2}O}]}$ The structure of D would be

Updated On: Apr 26, 2024
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The Correct Option is B

Solution and Explanation

$CH_{3}COOH {->[{SOCl_2}][{}]} CH_{3}COCl {->[{\text{Benzene}}][{\text{anhy}. AlCl_3}]}$
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Concepts Used:

Uses of Aldehydes and Ketones

Uses of Aldehydes:

  • Formaldehyde is a gas. With 40% solution in water, it forms Formalin which is used in preserving biological specimens.
  • Formaldehyde is used in embalming, tanning, preparing glues and polymeric products, as germicides, insecticides, and fungicides for plants. It is also used in drug testing and photography.
  • When reacted with phenol, formaldehyde forms Bakelite, which is used in plastics, coatings, and adhesives.
  • Acetaldehyde is largely used for the production of acetic acid and pyridine derivatives.
  • Benzaldehyde is used in perfumes, cosmetic products, and dyes. It is added to provide almond flavor to food products and also used as a bee repellent.

Uses of Ketones:

  • The most common ketone is acetone which is an excellent solvent for a number of plastics and synthetic fibers.
  • In the household, acetone is used as a nail paint remover and paint thinner.
  • In medicine, it is used in chemical peeling and for acne treatments.
  • Methyl ethyl ketone (MEK), chemically butanone, is a common solvent. It is used in the production of textiles, varnishes, plastics, paint remover, paraffin wax, etc.
  • MEK is also used as a welding agent for plastics due to its dissolving properties.
  • Cyclohexanone is another important ketone which is primarily used in the production of nylon.