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Which among the following statements is correct?(a) NaCl is a paramagnetic substance(b) Paramagnetic substances behave like an insulator(c) Cobalt is an Antiferromagnetic substance(d) On heating, ferrimagnetic substanceslose ferrimagnetismI had been asked this question in an interview for internship.The doubt is from Solid State Magnetic Properties in section Solid State of Chemistry – Class 12

Answer»

Correct option is (d) On heating, ferrimagnetic substanceslose ferrimagnetism

For EXPLANATION I would say: On heating, ferrimagnetic substances become PARAMAGNETIC and hence, lose their ferromagnetism. NaCl is DIAMAGNETIC in nature. Cobalt is a ferromagnetic SUBSTANCE.



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