Biodegradable Polymers MCQs | Engineering Chemistry
If hydrophilicity of the polymers is greater, then what will be the rate of the biodegradation?
(A) Â Larger
(B)Â Â Smaller
(C). None of these
Multiple Choice Question Answer: Â a
Biodegradation will be more for which of the following?
(A )Â Â None of these .
(B). Â Low molecular weights and high crystallinity
(C). Â More molecular weights and less crystallinity
(D). Â More molecular weights and high crystallinity
(E). Low molecular weights and less crystallinity
Multiple Choice Question Answer: Â d
Not required for the biodegradation process is __________
(A).. Â Substrate
(B). Â Environment conditions
(C). Â Micro-organism
(D Adhesives
(E). None of these
Multiple Choice Question Answer:Â d
Not an example of a natural biodegradable polymer is ____________
(A). Â Collagen
(B). Â Polyvinyl alcohol
(C ). Â Lignin
(D). Â Natural rubber
(E). None of these
Multiple Choice Question Answer:Â b
The Biodegradable polymers do not need to be land-filled, over the time they can re-enter the normal geo-chemical cycles.
(A )True
(B). Â False
(C). Partially True
Multiple Choice Question Answer: Â a
The PHB is used in which of the following?
(A)Â Â Adhesives
(B). Â Medical applications
(C). Â Â Agricultural applications
(D)Â Manufacture of shampoo bottles
(E). None of these
Multiple Choice Question Answer: Â d
Not an example of synthetic biodegradable polymer is _________
(A). Â Polyvinyl alcohol
(B). None of these
(C). Â Polyanhydrides
(D). Â Poly gamma-glutamic acid
(E ). Â PHBV
Multiple Choice Question Answer:Â b
The incorrect statement from the following is that The Biodegradable polymers are _________
(A). Â never suitable candidates in the recycling of the commingled plastics
(B). Â very expensive
(C). Â not easily available
(D). Â Â easily available
(E). Â None of these
Multiple Choice Question Answer: Â d
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