The approximate volume of air containing 10cm3 of oxygen is?
-
A.
20 cm3 -
B.
25 cm3 -
C.
50 cm3 -
D.
100 cm3
Correct Answer: Option C
Explanation
Volume of air containing 10 cm O2 is
(100 x 10)/(20) = 50cm3
Volume of air containing 10 cm O2 is
(100 x 10)/(20) = 50cm3