Question detail

Which of the following statements is true about steels?

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. Steels are pure metals.
B. Steels contain only iron.
C. Steels are alloys of iron containing carbon.
D. Steels are made from copper.

Answer

The correct option is Steels are alloys of iron containing carbon.. This answer is correct because it matches the approved learning objective to recall that steels are alloys of iron containing carbon and sometimes other metals. (Chemistry only) in the subtopic Alloys as useful materials.

Explanation

The correct option is Steels are alloys of iron containing carbon.. Steels are alloys of iron containing carbon. is correct because it directly supports the approved learning objective to recall that steels are alloys of iron containing carbon and sometimes other metals. (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

Misunderstanding Steel Composition

Students often think that all steels contain the same amount of carbon and that they are only made from iron.

Remember that steels are alloys of iron that can contain varying amounts of carbon and sometimes other metals, leading to different properties.

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