Asked in Premeth LR-06 — Inheritance, Evolution, Atomic Spectra, Carboxylic Acids, Phrasal VerbsModerate

Acetic acid is called _ acid.

Correct answer: B. Ethanoic

  • A. Methanoic
  • B. Ethanoic
  • C. Propanoic
  • D. Butanoic

Explanation

Acetic acid (CH3COOH), also called ethanoic acid, the most important of the carboxylic acids. A dilute (approximately 5 percent by volume) solution of acetic acid produced by fermentation and oxidation of natural carbohydrates is called vinegar; a salt, ester, or acylal of acetic acid is called acetate.

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About Nomenclature, Structure and Preparation

Carboxylic acids are prepared by oxidising primary alcohols or aldehydes, hydrolysing nitriles, esters and amides, and carbonating suitable organometallic compounds. Their structures, IUPAC naming, resonance stabilisation and acidic character explain why carboxylic acids differ from alcohols and phenols, despite all containing oxygen and hydrogen.

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550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.

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