Question

a gaseous mixture contains oxygen and nitrogen in the ratio 1:4 by weight. therefore, the ratio of their no of molecules is.
a. 1:4
b. 1:8
c. 7:32
D. 3:16

Answer 1

OxygenNitrogen=14OxygenNitrogen=14(by weight}
Ratio of number of molecules =144×16=732=144×16=732
7:327:32 is the ratio of their no of molecules.
Hence c is the correct answer.