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1051

Q:

The food substances which get oxidised easily can be kept for longer duration by adding

  • 1
    oxygen and keeping them in sun for few days
  • 2
    nitrogen and keeping them in sun for few days
  • 3
    oxygen and keeping them in airtight containers
  • 4
    nitrogen and keeping them in airtight containers
  • Show Answer
  • Workspace

Answer : 4. "nitrogen and keeping them in airtight containers"

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