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2 marksAcid/Base Equilibria

CAPE Chemistry Unit 1 · 2006 · Paper 1 · Question 5(a)

Dopa is a naturally occurring amino acid, with condensed formula A shown in Figure 4.

State TWO reasons why carbon can form straight chains and rings.

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Other parts of this question

  1. 5(b)Write the molecular formula of Dopa.[1 mark]
  2. 5(c)(i)Define the term 'isomerism'.[1 mark]
  3. 5(c)(ii)State TWO types of isomerism which can be exhibited by a molecule with formula A.[2 marks]
  4. 5(c)(iii)Draw the full structural formulae of TWO isomers for each type of isomerism stated in (c)(ii) on page 8.[4 marks]

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