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

Acetic acid was first isolated from:

Correct answer: D. Vinegar

  • A. Ants
  • B. Butter
  • C. Milk
  • D. Vinegar

Explanation

Acetic acid is typically isolated from vinegar, which is a dilute solution of acetic acid that is produced by the fermentation of ethanol by acetic acid bacteria.

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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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