Question

which of the following gases can be used for storage of fresh sample of an oil for a long time???
1. Co2 and O2
2. nitrogen or oxygen
3. Co2 or He
4. He or nitrogen

Answer 1

Answer:

4. He or N

Explanation:

Both of these gases are unreactive and can store oil without damaging it.

Answer 2

Answer:

4.He or Nitrogen

Explanation:

Because Food made of Fat and oil gets spoiled due to rancidity if it gets contact with oxygen so we use nitrogen for storing it for long time.