Question detail

Why is carat important when purchasing gold jewelry?

Try the question, check the answer, then read the explanation to understand the curriculum point.

Show answer Topic hub Objective page

At a glance

MCQ

Type

practice

Style

Topic

Using materials

Question

A. It indicates the color of the gold.
B. It determines the weight of the jewelry.
C. It affects the price and value of the gold.
D. It shows the manufacturing date.

Answer

The correct option is It affects the price and value of the gold.. This answer is correct because it matches the approved learning objective to explain carat as a measure of the proportion of gold in an alloy. (Chemistry only; MS 1a, 1c) in the subtopic Alloys as useful materials.

Explanation

The correct option is It affects the price and value of the gold.. It affects the price and value of the gold. is correct because it directly supports the approved learning objective to explain carat as a measure of the proportion of gold in an alloy. (Chemistry only; MS 1a, 1c). 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

Confusing Carat with Weight

Students often confuse carat, which measures the proportion of gold in an alloy, with the weight of the gold itself.

Clarify that carat refers to the purity of gold in an alloy, expressed as a fraction of 24 parts, rather than the weight of the gold.

Related flashcards

Flashcard 1 of 5

Press Space to flip, arrows to move