Match List - I with List - II.
|
List – I |
List – II |
|
(A) Copper pyrites |
(I) \(Cu_2O\) |
|
(B) Malachite |
(II) \(Cu_2S\) |
|
(C) Cuprite |
(III) \(CuCO_3.Cu(OH)_2\) |
|
(D) Copper glance |
(IV) \(CuFeS_2\) |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
Copper occurs in sulphide, carbonate and oxide ores; the name of each ore tells its type.
(A) Copper pyrites — This matches (IV) \(CuFeS_2\). A sulphide ore of copper and iron, the chief ore of copper.
(B) Malachite — This matches (III) \(CuCO_3.Cu(OH)_2\). The green basic copper carbonate ore.
(C) Cuprite — This matches (I) \(Cu_2O\). The red oxide ore, copper(I) oxide.
(D) Copper glance — This matches (II) \(Cu_2S\). The sulphide ore, copper(I) sulphide.
Shortcut: (A)-(IV) appears only in Option (3).
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.
NCERT (Pre-rationalised edition, 2022-23):
Occurrence of Metals – …
