State three reasons, giving suitable examples, why metals are alloyed.

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Solution

An alloy is a mixture of a metal with another metal or a metal and a non-metal. Examples of some alloys are Brass, Bronze, Stainless steel, etc.
Alloying is done for many reasons
To give attractive look: For example : german silver[Cu + Zn + Ni] has attractive silvery appearance. 
Increase hardness: Brass [Cu + Zn] is harder than copper.
Lower melting point: SOLDER [Pb + Sn] has low melting point.

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