Q14Multiple choice
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
Show answer
(d) Helium or nitrogen
Which of the following gases can be used for storage of fresh sample of an oil for a long time?
(d) Helium or nitrogen