Question

Match List - I with List - II.
$\begin{array}{cccc}& \text{List-I}& & \text{List-II}\\ & \text{(Ores)}& & \text{(Composition)}\\ \text{(a)}& \text{Haematite}& \text{(i)}& F{e}_3{O}_4\\ \text{(b)}& \text{Magnetite}& \text{(ii)}& ZnC{O}_3\\ \text{(c)}& \text{Calamine}& \text{(iii)}& F{e}_2{O}_3\\ \text{(d)}& \text{Kaolinite}& \text{(iv)}& \left[A{l}_2\right(OH{)}_{4}S{i}_2{O}_5]\end{array}$

Answer 1

Earth’s crust contains some naturally occurring components called minerals in which metal compounds are found. Ores can be said to be those minerals from which metal can be economically and easily extracted. All ores are minerals but all minerals are not ores.


Haematite – $F{e}_2{O}_3$
Magnetite – $F{e}_3{O}_4$
Calamine – $ZnC{O}_3$
Kaolinite – $\left[A{l}_2\right(OH{)}_{4}S{i}_2{O}_5]$