Question

Match List-I with List-II

List-I	List-II
(a) Haematite	(i) Al2O3. xH2O
(b) Bauxite	(ii) Fe2O3
(c) Magnetite	(iii) CuCO3. Cu(OH)2
(d) Malachite	(iv) Fe3O4

Choose the correct answer from the options given below:

• A. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
• B. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
• C. (a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
• D. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)

Answer 1

The correct option is D (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)

Haematite is a common iron oxide compound with the formula, $F{e}_2{O}_3$ and is widely found in rocks and soils.

Bauxite is an aluminium-rich ore used for the manufacture of aluminium and refractory products, chemicals or cement.
The chemical formula of bauxite is $A{l}_2{O}_3.2H_{2}O$

Magnetite $\left(F{e}_3{O}_4\right)$ is one of the oxides of iron, and is ferrimagnetic; it is attracted to a magnet and can be magnetized to become a permanent magnet itself.
Malachite is a green copper carbonate hydroxide mineral with a chemical composition of $Cu\left(C{O}_3\right).Cu(OH{)}_2$. It was one of the first ores used to produce copper metal.
So, the correct option is:
(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)