Question

Sulphides ore are common for the metal:
a.) Ag, Cu and Pb
b.) Ag, Cu and Sn
c.) Ag, Mg and Pb
d.) Al, Cu and Pb

Answer 1

Hint: Sulphide ores will mainly contain sulphide ores. They are economic and are very easy to extract from the rock. They are basically rocks which contain sulphide ions in larger parts.

Complete step by step answer:
Sulphide minerals are a class of the minerals which contains sulfide or per sulphide as the major anion. Some sulphide minerals are economically essential as metal ores. The sulphide class also includes the selenides, tellurides, the antimonides. Sulfide minerals are the inorganic compound.
Following are the sulfide ores of the metals:
Sulfide ore of silver is Argentite $(A{{g}_{2}}S)$. It is the chief source of silver. It is extracted using the process of leaching using the dilute solution of sodium cyanide.
Sulfide ore of lead is galena ($PbS$). Galena is also known as lead glance. It is the most important ore of lead. It is most abundant and it is used widely.
Sulphide ore of copper is copper glance ($C{{u}_{2}}S$). Copper glance is also known as chalcocite. This ore of copper sulphide is economically important.
So, the correct answer is “Option A”.

Note: The metal ores are mostly rows which are suitable for extraction. The process of removing unwanted minerals from the ore is known as ore concentration. It is also known as ore dressing or ore benefaction. The process of crushing the smaller piece into fine powder using stamps mills is known as pulverization. Minerals are found on the earth crust in a natural way.