What screening test is used for detecting heavy metals by boiling copper in an acid solution?

The Reinsch Test is the correct answer because it is specifically designed to detect heavy metals by reacting them with copper in an acidic solution. During this test, when a clean copper wire is introduced to the acidic solution containing the suspected heavy metals, those metals will reduce onto the copper. This results in a discoloration or deposition that indicates the presence of certain heavy metals, such as arsenic, mercury, or bismuth.

This method is particularly effective for the detection of these metals because the resulting deposits can be visually assessed or further analyzed. The Reinsch Test is historically significant in forensic science and toxicology for identifying metal poisoning.

In contrast, the other tests listed serve different purposes or operate on different principles. The Flame Test identifies the presence of certain metal ions based on the color they emit when heated in a flame. The Colorimetric Test measures the intensity of color produced in a solution containing the analyte, allowing for the quantification of certain substances based on their light absorption properties. The Spectrophotometric Test involves measuring the concentration of light absorbed by a chemical substance in a solution, which is a more advanced and different technique from the Reinsch Test. These methods do not specifically utilize copper in an acid solution as the