Chapter 4, Problem 4.54P

Interpretation Introduction

Interpretation:

Among the compounds $\text{iron}\left(\text{II}\right)\text{chloride}$, $\text{nickel}\left(\text{II}\right)\text{chloride}$ or zinc chloride the name and the formula of the compound that reacts with ${\text{AgNO}}_3$ to precipitate out the entire chloride ion as $\text{AgCl}$ is to be identified.

Concept introduction:

Precipitation reaction involves the reaction of two soluble ionic compounds to form an insoluble product. The insoluble product is known as a precipitate.

The reason for the precipitation reaction to occur is the formation of a product that is insoluble in nature. The insoluble product is formed when the electrostatic attraction between the ions is greater as compared to the attraction between ions and water molecule. The product will remain intact and precipitate out from the solution.