Question

Why gold is preferred for making jewellery
Physical properties of hardness of material and physical properties of malleability of material and electrical conductivity of material and conductivity of heat

Answer 1

Gold is preferred becz it is among the least reactive metals.

Physical prop.

purest form of gold is 24 carats which is very soft. To make it useful for making jewellery 22 carats gold with some copper is used.

gold is very malleable in nature but a poor conductor