The effect of the presence of impurities such as carbon and sulphur on iron is that they

Assessment: JAMB UTME - Chemistry - 2011 Subject: Chemistry

Question 1 Report

The effect of the presence of impurities such as carbon and sulphur on iron is that they
Answer Details
The presence of impurities such as carbon and sulphur in iron will lower its melting point. This is because impurities disrupt the regular arrangement of iron atoms, making it more difficult for them to move and reducing the amount of heat energy required for the iron to change from a solid to a liquid state. As a result, the melting point of the iron is decreased, making it easier to melt. It is important to note that while impurities may affect other properties of iron, such as its tensile strength or ductility, the question specifically asks about their effect on the melting point.
Read lesson note on Metals And Their Compounds (JAMB)
Read lesson note on Non-metals And Their Compounds (JAMB)
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