Q.28 Which of the following gases can be used for storage of fresh sample of an oil for a long time (a) Carbon dioxide or oxygen (b) Nitrogen Or Oxygen (c) Carbon dioxide Or Helium (d) Helium Or Nitrogen
Answers
Answered by
1
Answer:
d helium and nitrogen
Explanation:
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Answered by
1
Answer:
option d
Explanation:
helium and nitrogen
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