Match List I with List II.
| List I (Ore) | List II (Molecular form) |
| A. Haematite | I. CuCO3.Cu(OH)2 |
| B. Malachite | II. Na3AlF6 |
| C. Calamine | III. Fe2O3 |
| D. Cryolite | IV. ZnCO3 |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → A-III, B-I, C-IV, D-II
A. Haematite — This matches III. Fe2O3. The chief oxide ore of iron.
B. Malachite — This matches I. CuCO3.Cu(OH)2. A basic carbonate ore of copper.
C. Calamine — This matches IV. ZnCO3. The carbonate ore of zinc.
D. Cryolite — This matches II. Na3AlF6. Sodium hexafluoroaluminate; it is mixed with alumina in the electrolytic extraction of aluminium to lower the melting point and increase conductivity.
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 – …
