Match List - I with List - II.
|
List - I (Ore) |
List - II (Metal) |
|
(A) Calamine |
(I) Copper |
|
(B) Malachite |
(II) Aluminium |
|
(C) Siderite |
(III) Zinc |
|
(D) Cryolite |
(IV) Iron |
Choose the correct answer from the options given below :
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A)-(III), (B)-(I), (C)-(IV), (D)-(II)
An ore is a mineral from which a metal can be extracted profitably. Each ore is identified by the metal in its formula.
(A) Calamine — This matches (III) Zinc. Calamine is zinc carbonate, \( \ce{ZnCO3} \); zinc blende (ZnS) and zincite (ZnO) are the other zinc ores.
(B) Malachite — This matches (I) Copper. Malachite is a basic copper carbonate, \( \ce{CuCO3.Cu(OH)2} \).
(C) Siderite — This matches (IV) Iron. Siderite is iron(II) carbonate, \( \ce{FeCO3} \); haematite and magnetite are the oxide ores of iron.
(D) Cryolite — This matches (II) Aluminium. Cryolite is sodium hexafluoroaluminate, \( \ce{Na3AlF6} \), used as a flux in the electrolysis of alumina.
Note: This question is from the pre-rationalised NCERT book (2022-23). The topic is not there in the latest NCERT book (2026-27), and it is also out of the CUET 2026 syllabus.