Question detail
Which of the following statements is true about gold alloys?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Using materials
Question
- A. They are always more expensive than pure gold.
- B. They can have different colors depending on the alloying metals.
- C. They are less durable than pure gold.
- D. They are not used in jewellery.
Answer
The correct option is They can have different colors depending on the alloying metals.. This answer is correct because it matches the approved learning objective to describe gold jewellery as usually containing gold alloyed with metals such as silver, copper or zinc. (Chemistry only) in the subtopic Alloys as useful materials.
Explanation
The correct option is They can have different colors depending on the alloying metals.. They can have different colors depending on the alloying metals. is correct because it directly supports the approved learning objective to describe gold jewellery as usually containing gold alloyed with metals such as silver, copper or zinc. (Chemistry only). This belongs to the subtopic Alloys as useful materials within Using materials, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Alloys as useful materials.
Common mistake
Common Mistake in Gold Alloys
Students often state that gold jewellery is made of pure gold without mentioning that it is usually alloyed with other metals.
Emphasize that gold jewellery typically contains gold alloyed with metals such as silver, copper, or zinc to enhance its properties.
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