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Chemistry · May / June 2018 · Paper 12 · Question 36

5070Formulae, functional groups and terminology

Which diagram shows a branched-chain isomer of butane?

  1. AH-C(H)(H)-C(H)(C(H)(H)(H))-C(H)(H)-H
  2. BH-C(H)(H)-C(H)(H)-C(H)(H)-C(H)(H)-H
  3. CH-C(H)(H)-C(H)(H)-C(H)(H)-C(H)(H)-H
  4. DH-C(H)(H)-C(H)(C(H)(H)(H))-C(H)(H)-H

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Correct answer: A. H-C(H)(H)-C(H)(C(H)(H)(H))-C(H)(H)-H

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