National Dental Examining Board of Canada (NDEB) Practice Exam

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Prepare for the National Dental Examining Board of Canada (NDEB) Test. Study with flashcards and multiple choice questions, each question offers hints and detailed explanations. Achieve success in your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Which Gold Type is the hardest?

Type I
Type II
Type III
Type IV

The correct answer is: Type IV

Gold can be categorized into various types based on its chemical composition. Type IV gold is known as the hardest type because it contains the highest percentage of non-precious metals, such as copper and silver, which make it more durable and resistant to wear and tear. Types I, II, and III gold contain a higher percentage of precious metals, such as gold and platinum, making them softer and less resistant to scratching or damage. Therefore, Type IV is the hardest type of gold among the options provided.