(a) What kind of materials are coal and lead?
(b) Do they show property of malleability and ductility?
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1) Coal is obtained from Carbon (a non metal) and thus it does not shows d property of malleability or ductility.. Whereas Lead is a metal and thus it is both malleable and ductile.
2) Malleability is the ability of a material to deform under stess (compressive stress). If a material is malleable then it can be converted into thin sheets by hammering or rolling. Ductility of a material is the ability to stretch under stress (tensile stress).... Generally many metals have high malleability and ductility.
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Answer:
1coal is obtained from carbon(a non metal) and thus it does not shows d property of malleability or ductility..whereas lead is a metal and thus it both malleable and ductile.
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