Alloy
An alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal, made to improve useful properties.
Practice This ConceptMain explanation
Teacher explanation
Alloys are prepared because pure metals are often too soft, too reactive, or not strong enough for practical use. Mixing elements changes hardness, strength, corrosion resistance, and sometimes melting point. Common examples are brass, bronze, and stainless steel.
Example
Brass is a mixture of copper and zinc.
Simple analogy
Alloy means useful mix.
Common confusion
Students often think an alloy is a compound, but it is usually a mixture with variable composition.
Exam tip
In exams, mention that alloys are mixtures made to improve properties.
Answer writing and exam use
1-mark use
Write the exact meaning of alloy in one clean line.
2-mark use
Define alloy and add one example or condition.
3-mark use
Explain alloy, show the method or example, and mention the common mistake.
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