19.
Which of the following is used to improve the thermal stability during polymerisation?
Answer : D. Stabilizers
20.
The polymers are classified into _________ types based on the nature of polymerization.
Answer : A. two
21.
Based on tacticity, the polymers are divided into __________ types.
Answer : B. three
22.
As the crystallinity increases The brittleness of the polymer ______
Answer : B. Decrease
23.
The polymer absorbs ________ and swells in size
Answer : D. Water
