Dental Admissions Test (DAT) Practice Test

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Prepare for the Dental Admissions Test (DAT) with our comprehensive practice test. Study effectively with flashcards and multiple-choice questions, each with detailed hints and explanations. Get ready to ace your exam and secure your future in dentistry!

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Practice this question and more.

Which of the following is a characteristic of a Lewis acid?

  1. Accepts a proton

  2. Donates an electron pair

  3. Accepts an electron pair

  4. Donates a proton

The correct answer is: Accepts an electron pair

A Lewis acid is a molecule or ion that is able to accept an electron pair. In contrast, a Lewis base is a molecule or ion that is able to donate an electron pair. Therefore, A and D are incorrect because they refer to the action of donating or accepting a proton, while B is incorrect because it refers to the action of donating an electron pair. The correct characteristic of a Lewis acid is the acceptance of an electron pair.

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