Match List I with List II
| List I | List II |
| A. Calamine | I. \(CuFeS_2\) |
| B. Siderite | II. \(ZnCO_3\) |
| C. Sphalerite | III. \(ZnS\) |
| D. Copper pyrite | IV. \(FeCO_3\) |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → A-II, B-IV, C-III, D-I
Ores are named compounds of metals: carbonate ores (calamine, siderite) and sulphide ores (sphalerite or zinc blende, copper pyrites) are the common types for zinc, iron and copper.
(A) Calamine — This matches (II) ZnCO3, a carbonate ore of zinc.
(B) Siderite — This matches (IV) FeCO3, a carbonate ore of iron.
(C) Sphalerite — This matches (III) ZnS, zinc blende, a sulphide ore of zinc.
(D) Copper pyrite — This matches (I) CuFeS2, the chief sulphide ore of copper.
Shortcut: (B)-(IV) and (C)-(III) appear together 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 – …
