A 407 container placard guide page is 119. What does this mean? The product is a _________.

A 407 container placard guide page is 119. What does this mean? The product is a _________.

• A. Monomer
• B. Polymer
• C. Oligomer
• D. Dimer

Answer: (A)

Understanding how placard guides are read helps you identify the substance form from the code on the container. In this system, the placard code points you to a specific form in the guide’s pages. When the cross-reference for that code shows monomer, the product is a monomer—a single molecule that can react with other units to form polymers. So, the substance is a monomer because the guide’s linkage for that placard code identifies the material as a single-unit molecule, not a polymer, oligomer, or dimer. A polymer would be many units linked together, an oligomer is a short chain of a few units, and a dimer is simply two units.

Understanding how placard guides are read helps you identify the substance form from the code on the container. In this system, the placard code points you to a specific form in the guide’s pages. When the cross-reference for that code shows monomer, the product is a monomer—a single molecule that can react with other units to form polymers.

So, the substance is a monomer because the guide’s linkage for that placard code identifies the material as a single-unit molecule, not a polymer, oligomer, or dimer. A polymer would be many units linked together, an oligomer is a short chain of a few units, and a dimer is simply two units.