Match List I with List II
| List I | List II |
| (A) Diamagnetic solid | (I) \(CrO_2\) |
| (B) Ferromagnetic solid | (II) \(Fe_3O_4\) |
| (C) Antiferromagnetic solid | (III) \(NaCl\) |
| (D) Ferrimagnetic solid | (IV) \(MnO\) |
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)
(A) Diamagnetic solid — This matches (III) \( \ce{NaCl} \). All electrons are paired, so the solid is weakly repelled by a magnetic field.
(B) Ferromagnetic solid — This matches (I) \( \ce{CrO2} \). Its domains line up in the field and stay aligned, so it is attracted very strongly and can be permanently magnetised.
(C) Antiferromagnetic solid — This matches (IV) \( \ce{MnO} \). The domains are oppositely oriented in equal numbers and cancel each other’s magnetic moments.
(D) Ferrimagnetic solid — This matches (II) \( \ce{Fe3O4} \). The domains are aligned parallel and anti-parallel in unequal numbers, so a net weak attraction remains.
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):
Magnetic Properties – …
