Question

Match the items in list I with item(s) in list 2.

Answer 1

Metals and their ores are as follows:

Copper $C{u}_{2}O$ Cuprite (oxide)

$CuFe{S}_2$ Copper pyrite (sulphide)

Calcium $CaC{O}_3$ Lime stone (carbonate)

Sodium $NaCl$ Common salt (chloride)

Mercury $HgS$ (sulphide)

Gold exists in free state (uncombined).