I am having trouble on this please help
Indicate which of these statements is true? For those that are false,.explain why
a) addition reactions always involve compounds with multiple bonds
b) all addition reactions produce polymers, but not all polymers are addition polymers
c) all addition polymers are based on reaction between molecules with multiple bonds
d) addition polymers must contain double bonds
No one ever answered
To determine which statement is true, let's evaluate each option and explain why the false statements are incorrect:
a) Addition reactions always involve compounds with multiple bonds.
This statement is false. Addition reactions can occur with compounds that have multiple bonds, but they can also occur with compounds that have a single bond. For example, the addition of water to an alkene (a compound with a double bond) is an addition reaction, but the addition of hydrogen to an alkane (a compound with only single bonds) is also an addition reaction. Therefore, the presence of multiple bonds is not a requirement for addition reactions.
b) All addition reactions produce polymers, but not all polymers are addition polymers.
This statement is true. Addition reactions can indeed produce polymers, but not all polymers are formed through addition reactions. Polymerization can occur through various processes, such as condensation or substitution reactions. Addition polymers specifically involve the repetitive addition of monomers without the elimination of any byproducts, such as water or a small molecule.
c) All addition polymers are based on a reaction between molecules with multiple bonds.
This statement is false. Addition polymers are formed through the addition of monomers, but not all monomers have multiple bonds. For example, polyethylene is an addition polymer formed by the addition of repeating ethylene (C2H4) monomers, where each monomer contains a double bond. On the other hand, addition polymers like polypropylene or polyvinyl chloride (PVC) are formed from monomers that do not have multiple bonds.
d) Addition polymers must contain double bonds.
This statement is false. Addition polymers can be formed from monomers without double bonds. For example, polyethylene, which is a common addition polymer, is formed by the addition of ethylene monomers that contain a double bond. However, polymers like polypropylene, polystyrene, or polyvinyl chloride (PVC) are also addition polymers, even though their monomers do not have double bonds.
In summary, statement b is true, while statements a, c, and d are false. It's important to understand the concepts of addition reactions and polymers to correctly evaluate these statements.