Cambridge IGCSE Chemistry Topic 14: Organic Chemistry Names of Compounds Quiz

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Questions and Answers

Which functional group is present in compounds ending in -ane?

  • OH
  • C=C
  • C-C (correct)
  • COOH

What is the functional group in compounds ending in -ene?

  • C-C
  • COOH
  • OH
  • C=C (correct)

Which functional group characterizes compounds ending in -ol?

  • OH (correct)
  • C-C
  • C=C
  • COOH

What is the functional group in compounds ending in -oic acid?

<p>COOH (C)</p> Signup and view all the answers

If a compound has a functional group C=C, what is its name likely to end with?

<p>-ene (A)</p> Signup and view all the answers

In a compound with the functional group OH, how is the name likely to end?

<p>-ol (B)</p> Signup and view all the answers

What is the correct prefix for a compound with 4 carbon atoms?

<p>Buto (D)</p> Signup and view all the answers

Which suffix is used for compounds with a functional group of -COOH?

<p>-anoic acid (D)</p> Signup and view all the answers

What is the molecular formula of ethanoic acid?

<p>C2H4O2 (A)</p> Signup and view all the answers

Which compound is represented by the molecular formula C2H5OH?

<p>Ethanol (C)</p> Signup and view all the answers

What prefix is used for a compound with 3 carbon atoms?

<p>Propo (A)</p> Signup and view all the answers

Which suffix is used for compounds with a single bond between carbon atoms?

<p>-ane (B)</p> Signup and view all the answers

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Study Notes

Functional Groups and Nomenclature

  • Compounds ending in -ane have an alkane functional group.
  • Compounds ending in -ene have an alkene functional group.
  • Compounds ending in -ol have a hydroxyl (OH) functional group.
  • Compounds ending in -oic acid have a carboxyl (-COOH) functional group.
  • Compounds with the functional group C=C are likely to have a name ending in -ene.
  • Compounds with the functional group OH are likely to have a name ending in -ol.
  • The prefix for a compound with 4 carbon atoms is but-.
  • The suffix for compounds with a functional group of -COOH is -oic acid.
  • The molecular formula of ethanoic acid is CH₃COOH.
  • The molecular formula C2H5OH represents ethanol.
  • The prefix for a compound with 3 carbon atoms is prop-.
  • The suffix for compounds with a single bond between carbon atoms is -ane.

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