Question

Which of the following will not show ESR Spectrum.
a) O2 b) C2H c) N2​

Answer 1

Answer:

b)C2H

Explanation:

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Answer 2

The compound that will not show ESR Spectrum is c) N2.

• ESR spectrum of electron spin resonance is shown by molecules having an unpaired electron or free radical. it is shown by paramagnetic molecules and absent in diamagnetic species.
• ESR spectrum is shown by NO2, CO2 and NO2.
• O2 is paramagnetic and N2 is diamagnetic.
• C2H5 can generate free radicals while Cu2+ is paramagnetic.
• Cu2+ is paramagnetic as it contains one unpaired electron in both strong fields as well as weak fields. its electronic configuration is t2g6 eg3.