which of the following gases can be used for storage of fresh sample of an oil for a long time
1- carbon dioxide or oxygen 2-nitrogen or oxygen
3-carbon dioxide or Helium 4-Helium or nitrogen
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Option-(4) => Helium or Nitrogen
Helium or Nitrogen can be used for storage of fresh sample of oil for a long time
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Answer:4 helium or nitrogen
Explanation:
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