Question

. (a) What kind of materials are coal and lead?
(b) Do they show property of malleability and ductility?​

Answer 1

Answer:

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.

Answer 2

Answer:

Coal is a non- metal and hence it doesn't show the property of malleability and ductility.

Lead is a metal and hence it have both the properties of malleability and ductility.