The purest form of commercial iron is
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Wrought Iron
The commercial forms of iron differ mainly in their carbon content: pig iron has about 4% carbon, cast iron about 3%, and steel a controlled amount added on purpose. Wrought iron contains the least carbon and other impurities, so it is the purest form of commercial iron.
Note 1: 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):
Extraction of Iron from its Oxides – …
Note 2: The same/similar question has been asked in different years by NTA as per the details given below:
| 2026 | 2025 | 2024 | 2023 | 2022 |
|---|---|---|---|---|
| – | – | – | 09-06 S3 23-05 S3 | – |