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