Question

The density of gas A is twice that of B at the same temperature the molecular weight of gas B is thrice that of A.The ratio of pressure A and gas B will be:

• A. $1:6$
• B. $7:8$
• C. $6:1$
• D. $1:4$

Answer 1

The correct option is C $6:1$

The ratio of pressure A and gas B will be $\frac{P_A}{P_B}=\frac{d_A}{d_B}=\frac{M_B}{M_A}=2\times 3=6:1$