Question

Match the columns.

List I	List II
A. Bauxite	$1.$ Lead
B. Haematite	$2.$ Thorium
C. Galena	$3.$ Aluminium
D. Monazite	$4.$ Iron

• A. $A-3,B-1,C-4,D-2$
• B. $A-4,B-2,C-1,D-3$
• C. $A-3,B-4,C-1,D-2$
• D. $A-2,B-4,C-3,D-1$

Answer 1

The correct option is C $A-3,B-4,C-1,D-2$

Solution:-

(A) Bauxite $\to \left({Al}_2{O}_3.2H_{2}O\right)$ It is an ore of Aluminium containing $15-20\%$ aluminium. $\to$ (3) Aluminium

(B) Haematite $\to \left({Fe}_2{O}_3\right)$ A reddish-black mineral consisting of ferric oxide. It is an important ore of iron. $\to$ (4) Iron

(C) Galena $\to \left(PbS\right)$ Galena, also called lead glance, is the natural mineral form of lead(II) sulfide. $\to$ (1) Lead

(D) Monazite $\to$ Monazite is an important ore for thorium, lanthanum, and cerium. It is radioactive due to the presence of thorium. $\to$ (2) Thorium