Question 1:
Which of the following is an example of a natural polymer?
Explanation: The correct answer is C) Cellulose. Cellulose is an example of a natural polymer. It is the main component of plant cell walls and is widely used in the production of paper, textiles, and other products.
Question 2:
Which type of polymer is formed through the combination of two or more different monomers?
Explanation: The correct answer is B) Copolymer. A copolymer is formed through the combination of two or more different monomers. This results in a polymer with properties that may be different from those of the individual monomers.
Question 3:
Which type of polymer can be repeatedly softened and reshaped upon heating?
Explanation: The correct answer is B) Thermoplastic polymer. A thermoplastic polymer can be repeatedly softened and reshaped upon heating. It undergoes reversible changes in its physical properties with temperature.
Question 4:
Which type of polymer exhibits rubber-like elasticity and can be stretched and returned to its original shape?
Explanation: The correct answer is C) Elastomer. An elastomer is a type of polymer that exhibits rubber-like elasticity. It can be stretched and returned to its original shape. Examples of elastomers include natural rubber and synthetic rubbers like neoprene and silicone rubber.
Question 5:
Which type of polymer is capable of undergoing significant changes in its properties upon exposure to heat or other external factors?
Explanation: The correct answer is C) Thermosetting polymer. A thermosetting polymer is capable of undergoing significant changes in its properties upon exposure to heat or other external factors. Once set, it becomes infusible and insoluble, making it resistant to melting and reshaping.
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