Carbon is present in steel wholly in the__________________?
Correct answer: B. Combined form
- A. Free state as graphite
- B. Combined form
- C. Both A. and B.
- D. Neither A. nor B.
Explanation
In ordinary steel, carbon is present mainly in combined form, such as iron carbide or cementite. Free graphite is characteristic of cast irons and certain special compositions rather than normal steel.
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