Understanding Polymers

What is a common feature of all polymer molecules?

• They have ionic bonds.

• They are always liquid at room temperature.

• They consist of repeating monomer units.

• They are made of a single atom.

Which of the following is a monomer used to make polypropylene?

• Butadiene

• Propine

• Styrene

• Ethylene

What does the letter 'n' represent in polymer drawings?

• The number of covalent bonds

• The number of atoms in a monomer

• The number of repeating units in the polymer

• The number of different monomers

Why do polymers generally have higher melting points than simple molecular substances?

• They have fewer atoms.

• They are made of metal atoms.

• They have more intermolecular forces due to their long chains.

• They have stronger ionic bonds.

Which type of bond is primarily responsible for the high melting and boiling points of polymers?

• Ionic bonds

• Metallic bonds

• Hydrogen bonds

• Covalent bonds