Which of the following gases can be used for storage of fresh sample o – InterviewSolution

1.	Which of the following gases can be used for storage of fresh sample of an oil for a long time ? 1) Carbon dioxide 2) Helium 3) Nitrogen 4) Oxygen A) 1 or 4 B) 3 or 4 C) 2 or 3 D) 1 or 2
Answer» Correct option is C) 2 or 3

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