Question

A gas X diffuses three times faster than another gas Y, the ratio of their densities i.e., $D_x : D_y$ is

• A. 44564
• B. 44570
• C. 44567
• D. 44573

Answer 1

Answer: (B)

44570

Answer 2

Hint : $\frac{Mass \, of \, H_2}{Mass\, of O_2} = \sqrt{\frac{Mol. mass \, of \, H_2}{Mol. mass \, of \, O_2}}$ $\frac{m_{H_2}}{m_{O_2}} = \sqrt{\frac{2}{32}} = \frac{1}{4}$