BPSC – Combined Competitive Examination · ప్రశ్న 92
Paramagnetism is exhibited by which of the following?
సమాధానం చూపించు & వివరణ
సమాధానం: (C) Platinum
వివరణ
Paramagnetic materials (Al, Pt, O₂) are weakly attracted; Fe, Co, Ni are ferromagnetic; Hg, Bi, Cu are diamagnetic.
- (A) తప్పు
Wrong: mercury is diamagnetic.
- (B) తప్పు
Wrong: iron is ferromagnetic.
- (C) సరైనది
Correct: platinum is paramagnetic.
- (D) తప్పు
Wrong: nickel is ferromagnetic.
- (E) తప్పు
Wrong: only one of the options A–D is correct.