OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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polymers consist of more than one type of monomer
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polymers are broken down through hydrolysis
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polymers are synthesized through dehydration synthesis
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All are untrue
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Detailed explanation-1: -Statement 1 saying “Thermosetting polymers are reusable” is incorrect as “thermosetting polymers can-not be recycled or used even after heating because they can sustain over a high value of temperature and permanently hardened once set to a shape". Hence, the correct answer is option 1.
Detailed explanation-2: -Polymers are not restricted to monomers of the same chemical composition or molecular weight and structure. Some natural polymers are composed of one kind of monomer. Most natural and synthetic polymers, however, are made up of two or more different types of monomers; such polymers are known as copolymers.
Detailed explanation-3: -Polymers do not occur in nature.
Detailed explanation-4: -The answer is “Polymers are substances that have relatively large molecules."