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Class 10ScienceChemical Substances – Nature and BehaviourCarbon and its CompoundsEasy
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What is the common name of ethanoic acid?

Answer and explanation

Correct answer: Acetic acid

The governing concept is the relationship between systematic IUPAC names and common names of carboxylic acids. Ethanoic acid has the formula CH₃COOH and is commonly known as acetic acid, so option A is correct. Methanoic acid, HCOOH, is called formic acid and is a different compound. Lactic acid and citric acid are also different organic acids with different structures and properties.

Related tags

ScienceClass 10Carbon CompoundsEthanoic AcidAcetic AcidCarboxylic AcidsCarbon And Its CompoundsChemical Substances – Nature And Behaviour
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10 more MCQs
  1. 1Which type of bond is generally found in carbon compounds?
  2. 2What is the ability of carbon to form long chains with its own atoms called?
  3. 3Diamond and graphite are which type of forms of carbon?
  4. 4Which allotrope of carbon is the hardest natural substance?
  5. 5Which type of bond is generally present in unsaturated hydrocarbons?
  6. 6What type of hydrocarbon is ethene?
  7. 7What type of hydrocarbon is ethyne?
  8. 8What is a series of organic compounds having the same functional group, in which successive members differ by a \\(\mathrm{-CH_2-}\\) unit, called?
  9. 9What is the difference in molecular mass between two successive members of a homologous series?
  10. 10Names of which organic compounds generally end in “-ene”?
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