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The pores in bread are due to gas bubbles of

  • A.Oxygen
  • B.Nitrogen dioxide
  • C.Nitrogen
  • D.Carbon dioxide

Answer: D

Correct answer: Carbon dioxide

Yeast ferments the sugars in the dough and releases carbon dioxide, which is trapped as bubbles by the gluten. Baking sets the structure around them, leaving the pores - and driving off the alcohol produced alongside.

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