Alloy is better than metal. Explain.
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A pure metal has identical atoms arranged in regular layers. The layers slide over each other easily. Alloys are harder and stronger because the different-sized atoms of the mixed metals make the atomic layers less regular, so they cannot slide as easily.
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Alloy is better than metal because of their following advantages:-
(i)Alloys do not get corroded or get corroded to very less extent.
(ii)They are harder and stronger than pure metals (example: gold is mixed with copper and it is harder than pure gold).
(iii)They have less conductance than pure metals (example: copper is good conductor of heat and electricity whereas brass and bronze are not good conductors).
(iv)Some alloys have lower melting point than pure metals (example: solder is an alloy of lead and tin which has lower melting point than each of the metals).
(v)When metal is alloyed with mercury, it is called amalgam.
(i)Alloys do not get corroded or get corroded to very less extent.
(ii)They are harder and stronger than pure metals (example: gold is mixed with copper and it is harder than pure gold).
(iii)They have less conductance than pure metals (example: copper is good conductor of heat and electricity whereas brass and bronze are not good conductors).
(iv)Some alloys have lower melting point than pure metals (example: solder is an alloy of lead and tin which has lower melting point than each of the metals).
(v)When metal is alloyed with mercury, it is called amalgam.
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