Biology 0610 · IGCSE · Biological molecules

Biological molecules — practice question

DCPIP can be used to test for vitamin C in food. Lemon juice contains vitamin C. What is observed when lemon juice is tested?

  • Astarts blue, finishes colourless
  • Bstarts colourless, finishes blue
  • Cstays blue
  • Dstays colourless

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