Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for participation； Question 191
Thread Content
This post was last edited by ljtjbx on 2015-10-16 at 15:32. Multiple-choice question: Linear polymers are compared to bulk polymers ( ). A—High elasticity, good plasticity B—High elasticity, high hardness C—Low elasticity, high hardness D—Low elasticity, good plasticity. Answer: D – Low elasticity, good plasticity. —————————————————— Please note: We will close this thread after 24 hours, and at that time we will announce the best reply (the best assistance), as well as the answer and explanation. Attraction Reward: Those who post a topic in this section within two days to provide a detailed explanation or discussion on the knowledge points related to this question are asked to reply/comments in this post to inform us, and we will have a moderator award them + Attraction. It is not allowed to simply copy and paste; original content is preferred, with at least some organization by the user along with personal insights.
Linear polymers are different from bulk polymers (D).
D has low elasticity and good plasticity~~~~~~~~~~~~~~~~~~
D. It has low elasticity and good plasticity.
Choose A: Linear polymers have good elasticity, are plastic, can be melted, and can be dissolved by solvents; they also have low hardness and brittleness. Macromolecular solids have a three-dimensional structure; they lack elasticity and plasticity, cannot be melted or dissolved, and exhibit high hardness and brittleness.
Linear polymers have less elasticity and better plasticity compared to bulk polymers (D)
Answer: Choose D as it has low elasticity and good plasticity
The correct answer is D; linear polymers have lower elasticity and better plasticity compared to bulk polymers.
Multiple-choice question: Linear polymers have lower elasticity and better plasticity compared to bulk polymers (D). A—High elasticity, good plasticity B—High elasticity, high hardness C—Low elasticity, high hardness D—Low elasticity, good plasticity
A should be chosen—high elasticity and good plasticity