Polymers

Q. Rigid and very strong Polymer.

• Linear

• Branched

• Cross-Linked

• Thermoset

Which of the following is a branched polymer?

• Low-density polyethylene (LDPE)

• High-density polyethylene (HDPE)

What is the classification of polymer based on Polymerisation

• Linear,branched, crosslinked

• Addition, condensation

• Natural, synthetic

• Homomer, co-polymer

What kind of chemical bonds create polymers?

• ionic

• covalent

• hydrogen

• metallic

Which polymers occur naturally?

• Starch and Nylon

• Starch and Cellulose

• Proteins and Nylon

• Proteins and PVC

Which of these is an example of synthetic polymer?

• cotton fibers

• rubber

• wool

• polyvinyl chloride (PVC)

Proteins are composed of what smaller subunits?

• amino acids
• nucleic acids
• fatty acids
• nucleotides

A chain of repeating units (called monomers)

• monomer

• dimer

• replicate

• polymer

What happens in a Condensation Polymerisation reaction?

• Two different functional groups bond together and expel a small molecule (often water)

• A small molecule is added

• All atoms used up when monomers join together

Polymers are huge chains of repeating organic units called ___

• single cells

• monomers

• lone pairs

• base units