Chemistry 0620 · IGCSE · Formulae, functional groups and terminology

Formulae, functional groups and terminology — practice question

The diagram shows the structure of glycine. Which row is correct?

  • Aformula of glycine: $ ext{CH}_5 ext{O}_2 ext{N}$; number of different elements in glycine: $10$
  • Bformula of glycine: $ ext{C}_2 ext{H}_5 ext{O}_2 ext{N}$; number of different elements in glycine: $4$
  • Cformula of glycine: $ ext{C}_2 ext{H}_5 ext{O}_2 ext{N}$; number of different elements in glycine: $10$
  • Dformula of glycine: $ ext{H}_2 ext{NCHCOOH}$; number of different elements in glycine: $4$

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