The size of one grain in polymers are
Correct answer: A. 3Å to 4Å
- A. 3Å to 4Å
- B. 2Å to 4Å
- C. 4Å to 7Å
- D. 5Å to 8Å
Explanation
In polymers, the crystalline regions, or grains, have a very compact structure due to the orderly arrangement of polymer chains. The typical size of these grains is between 3Å to 4Å. Option A correctly identifies this range. Options B, C, and D either extend beyond or below this range, making them incorrect as they do not accurately reflect the compact nature of polymer grains.
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