CSS - PMS - CCE - PCS - General Science
Organic Chemistry - Polymers
What property describes polymers that can stretch and return toward their original shape?
A. Atomic number
B. Elasticity
C. Radioactivity
D. Magnetization only
Correct Answer: B
Elastomeric polymers can undergo substantial reversible deformation.
CSS - PMS - CCE - PCS - General Science
Organic Chemistry - Polymers
Which synthetic polymer is used to make nylon fibers?
A. Starch only
B. Natural DNA
C. Cellulose only
D. Nylon
Correct Answer: D
Nylon is a family of synthetic polyamides widely used in fibers and engineering materials.
CSS - PMS - CCE - PCS - General Science
Organic Chemistry - Polymers
What is condensation polymerization?
A. A process that makes atoms vanish
B. Polymerization that always occurs below 0°C
C. Only gas molecules condense
D. Polymer formation accompanied by elimination of small molecules such as water
Correct Answer: D
Condensation polymers form stepwise and often release small molecules.
CSS - PMS - CCE - PCS - General Science
Organic Chemistry - Polymers
What is addition polymerization?
A. Monomers join without eliminating a small molecule, often by opening multiple bonds
B. Only salts crystallize
C. A polymer breaks completely into atoms
D. A metal is oxidized
Correct Answer: A
In addition polymerization, unsaturated monomers add together directly.
CSS - PMS - CCE - PCS - General Science
Organic Chemistry - Polymers
DNA is a polymer built from what monomers?
A. Nucleotides
B. Glucose only
C. Fatty acids
D. Amino acids
Correct Answer: A
DNA consists of chains of nucleotide units.
CSS - PMS - CCE - PCS - General Science
Organic Chemistry - Polymers
Proteins are polymers whose monomers are what?
A. Amino acids
B. Nucleotides only
C. Fatty acids only
D. Simple metals
Correct Answer: A
Proteins are polypeptides built from amino acid monomers.
CSS - PMS - CCE - PCS - General Science
Organic Chemistry - Polymers
Which natural polymer is the main structural material in plant cell walls?
A. Polyethylene
B. Polystyrene
C. PVC
D. Cellulose
Correct Answer: D
Cellulose is a natural polysaccharide polymer that strengthens plant cell walls.
CSS - PMS - CCE - PCS - General Science
Organic Chemistry - Polymers
Which polymer is formed from ethene monomers?
A. Cellulose from ethene
B. PVC from chlorine gas only
C. Polyethylene
D. Nylon from glucose only
Correct Answer: C
Ethene undergoes addition polymerization to form polyethylene.
CSS - PMS - CCE - PCS - General Science
Organic Chemistry - Polymers
What is a monomer?
A. A catalyst that cannot react
B. A neutron
C. A small molecule that can join with others to form a polymer
D. A finished polymer chain only
Correct Answer: C
Monomers are molecular building blocks of polymers.
CSS - PMS - CCE - PCS - General Science
Organic Chemistry - Polymers
What is a polymer?
A. A metal alloy only
B. A single proton
C. A large molecule made of repeating structural units
D. A simple noble gas
Correct Answer: C
Polymers are macromolecules built from repeating units derived from monomers.