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Chem Chemistry

ChemistryNEB 2074 (old course) (grade increment)

What is the structural formula of ethanoic acid ? Write its functional isomer and IUPAC name. GROUP: B Short answer questions 5 × 5 = 25

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Answer

· Based on the official syllabus and past papers
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ethanoic acidethanoic acid
Structural formula of ethanoic acid (CH₃COOH)

Functional isomer of ethanoic acid: Methyl formate (HCOOCH₃). IUPAC name of ethanoic acid: Ethanoic acid (common name) is systematically named ethanoic acid (IUPAC name remains the same).

Explanation:

  • Ethanoic acid (CH₃COOH) contains a carboxylic acid functional group ().
  • Its functional isomer is methyl formate (HCOOCH₃), which contains an ester functional group ().
  • Both have the same molecular formula (C₂H₄O₂) but differ in functional groups.

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