Question

Does the first appearance of white ring indicate the first contact of the nh3 and hci molecules? explain your answer.

Answer 1

The white ring represents the first contact point between NH3 and HCl molecules, where they react to form solid ammonium chloride.

Step-by-step explanation:

The white ring formed in the reaction between ammonia (NH3) and hydrogen chloride (HCl) gas indicates the first point where these molecules come into contact and react to form ammonium chloride (NH4Cl).

During this process, the gases diffuse along the tube from opposite ends, and the position where they meet is where the reaction first occurs, observable as a white ring of the solid product. The formation of solid NH4Cl at the contact point of NH3 and HCl vapors due to their reaction is an example of a chemical change, which is an indication of chemical interaction between the molecules.