Question

The valves X and Y in the adjoining figure are opened simultaneously. The white fumes of NHCH
will first formed at​

Answer 1

Answer: near about C

Explanation: since from Graham's law rate of diffusion / effusion is inversely proportional to molecular mass....since the molecular mass of HCl > NH3 therefore HCl will diffuse with a slow rate hence NH3 will comes to the point C and react with HCl ..