25cm3 of a mixture of nobel gases was obtained from air after the removal of other constituents. What was the original volume of air
Answer Details
The volume of the mixture of noble gases is 25 cm³. This means that after the removal of other constituents, the remaining volume is 25 cm³. Since the noble gases were obtained from air, it means that the original volume of air was larger than 25 cm³. Therefore, the correct answer is either 2,500 cm³ or 1,250 cm³ since they are 100 or 50 times larger than the remaining volume of 25 cm³. It is impossible for the original volume to be 125 cm³ or 80 cm³ as they are smaller than the remaining volume of noble gases.