(A) Density of nitrogen obtained in chemical methods is more than that nitrogen separated from liquid air
(R) Density of atmospheric nitrogen is different than expected mainly because of water vapour.

Options

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true and (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. Both (A) and (R) are false

Answer

D