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MHT CET202312 May 2023Evening ShiftChemistryCarboxylic Acid DerivativesActual

Select the CORRECT increasing order of boiling points of alcohols, amines and carboxylic acids of comparable molar mass from the following.

Options

  1. AAlcohols < Amines < Carboxylic acids
  2. BAmines < Carboxylic acids < Alcohols
  3. CAmines < Alcohols < Carboxylic acids
  4. DCarboxylic acids < Alcohols < Amines

Correct answer

C. Amines < Alcohols < Carboxylic acids

Step-by-step solution

N - H bonds in amines are less polar than O - H bond in alcohols. Carboxyl group (- COOH ) of carboxylic acid contains O - H bond which is responsible for formation of hydrogen bonding. Strength of hydrogen bonding in carboxylic acid is greater than that of alcohols.

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