Carbon and iron form an alloy called steel. What is the function of carbon in this alloy?
A
Increase the melting point
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B
Increase the strength
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C
Increase the ductility
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D
Make the alloy corrosion resistant
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Solution
The correct option is BIncrease the strength The function of carbon in steel is to make it tougher and more durable. Carbon strengthens iron by distorting its crystal lattice.