12th Class Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II

  • question_answer 77)
      Why is nitric oxide paramagnetic in gaseous state but the solid obtained on cooling it is diamagnetic?

    Answer:

                        In gaseous state, NO2 exists as a monomer which has one unpaired electron but in solid state, it dimerises to  so no unpaired electron left. Therefore, NO2 is paramagnetic in gaseous state but diamagnetic in solid state.


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