Q1: Out of the following, the most melleable material is

ANS:D - lead

The most malleable material out of the options provided is lead. Malleability refers to the ability of a material to be hammered or rolled into thin sheets without breaking or cracking. Lead is exceptionally malleable, and it can be easily shaped and deformed under compressive forces. This property makes lead a valuable material for applications such as roofing, piping, and the production of various industrial products. Copper and aluminum are also malleable, but lead surpasses them in terms of malleability. Wrought iron, while ductile and capable of being shaped, is generally less malleable than lead.