Question detail
Why is gold often alloyed with other metals in jewellery?
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. To increase its strength and durability
- B. To decrease its melting point
- C. To improve its electrical conductivity
- D. To make it more reactive
Answer
The correct option is To increase its strength and durability. 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 To increase its strength and durability. To increase its strength and durability 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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