Same chapter1 markDifficulty: Easy
The chief ore of aluminium is:
Metallurgy
2 marksDifficulty: Easy
Define an alloy and state two reasons for making alloys.
Original Khojo Papers practice question — not from a past board paper.
Answer
An alloy is a homogeneous mixture of two or more metals, or of a metal with a non-metal, formed by melting them together. Alloys are made to increase hardness and strength, and to improve resistance to corrosion; they may also lower the melting point or improve appearance.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Solder, an alloy of lead and tin, melts at a lower temperature than either metal.
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