The homologue of ethanol is ___________.

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RRB Group D 28 Sept 2022 Shift 3 Official Paper
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  1. propanal
  2. methanol
  3. ethanal
  4. ethane

Answer (Detailed Solution Below)

Option 2 : methanol
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Detailed Solution

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The correct answer is methanol.Key Points:

  • A homologous series is a collection of substances that have a common generic formula and have related chemical characteristics.
  • As the atomic mass of the series' members increases, so do their physical characteristics.
  • The alcohols are a group of related organic substances.
  • They all contain the functional group -OH, which is in charge of giving alcohols their unique characteristics.
  • In the homologous sequence, the first three alcohols are methanol (CH3OH), ethanol (C2H5OH), and propanol (C3H7OH).
  • Methanol is the previous homolog of ethanol. 

Additional Information:

  • When diluted, ethanol can be found in beer, wine, and spirits.
  • It is a topically applied component that helps to prevent skin infections in cosmetics, perfumes, and pharmaceutical preparations such rubbing compounds, lotions, tonics, and colognes.
  • The ethanol used in industry as a solvent for fats, oils, waxes, resins, and hydrocarbons may be present in fuels that are designated as ethanol-blended fuels.
  • It is used to make a variety of chemicals, including lacquers, plastics and plasticizers, rubber and rubber accelerators, aerosols, mouthwash products, soaps, and cleaning solutions.
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