Two gases A and B having same volume diffuse through a porous partition in 20 and 10 seconds respectively. Molar mass of A is 49u. Molecular mass of B will be-

Two gases A and B having the same volume diffuse through a porous partition in 20 and 10 seconds respectively. The molar mass of A is 49 u . Molar mass of B will be

Two gases A and B having the same volume diffuse through a porous partition in 20 and 10 seconds respectively. The molar mass of A is 49 u . Molar mass of B will be

Two gases A and B having the same volume diffuse through a porous partition in 20 and 10 seconds respectively. The molecular mass of A is 49u. Molecular mass of B will be :

Two gases A and B having the same volume diffuse through a porous partition in 20 and 10 s respectively. The molecular mass of A is 49 u. Molecular mass of B will be