Polymer

Smaller molecules that combine to form polymers is called

• monomer

• polymer

• transformer

Tags

NGSS.MS-PS1-1

The combination process of small molecules to form long chain of molecules is called

• polymerisation

• depolymerisation

Tags

NGSS.HS-LS1-6

The break up of polymer molecules into their monomer is called

• polymerisation

• depolymerisation

Polymers made by humans through chemical reactions are called

• synthetic polymer

• natural polymer

Tags

NGSS.MS-PS1-3

Monomers of natural rubber are

• glucose

• amino acid

• isoprene

Which of the following is NOT a characteristic of thermoplastics?

• They can be remelted and reshaped

• They have a highly cross-linked structure

• They soften upon heating

Answer explanation

Thermosets have a cross-linked structure. That is what makes it so they can NOT be changed by heat.

Which property is NOT associated with thermoset polymers?

• Ability to be reshaped by heating

• Resistance to deformation under heat

• High resistance to chemicals

Answer explanation

Only thermoplastics can be reshaped using heat.

What is a monomer?

• A small molecule that can join with other similar molecules to form a polymer

• A type of polymer that consists of only one kind of monomer

• A by-product of the polymerization process

Answer explanation

Which type of plastic will float in water?

• Thermoset plastics

• Thermoplastic

Answer explanation

The higher density of the thermoset plastics is what causes them to sink.

What is the primary structural unit of a polymer?

• Monomer

• Polymer

• Dimer

• Oligomer