INBDE (Integrated National Board Dental Examination) Practice Exam

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The ratio of monomer to polymer is:

  1. 1:2

  2. 2:1

  3. 1:3

  4. 1:1

The correct answer is: 1:3

The ratio of monomer to polymer refers to the number of monomer units needed to form one polymer chain. In this case, the correct ratio is 13, meaning for every one monomer unit, three are needed to create a polymer chain. These are referred to as monomer:polymer ratios because they are in relation to each other. Option A, 1:2, is incorrect because it means there are two monomer units for every one polymer unit which is not an accurate ratio. Option B, 2:1, is also incorrect for the same reason. Option D, 1:1, may seem like a reasonable answer, but it would actually result in a dimer, not a polymer. Therefore, option C is the correct answer.

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