RRB Group D 17-Sep-2018 Shift 2 Solved Paper

Malleability is the property of metals that enable the production of metallic foils.
A foil is a very thin sheet of metal, usually made by hammering or rolling. Foils are most easily made with malleable metals,such as aluminium, copper, tin, and gold.
Foils usually bend under their own weight and can be torn easily. The more malleable a metal, the thinner foil can be made with it.