Question

Which of the following systems will show electron spin resonance (ESR) spectrum? (i) H (ii) equation (iii) equation (iv) equation (v) equation (vi) equation 

21 Jan 2026
Answer :
Word Count : 169
Electron spin resonance is observed only for systems that contain at least one unpaired electron. A hydrogen atom has a single electron in the 1s orbital, which is unpaired, so it will show an ESR spectrum. The hydrogen molecule has two electrons _________ _____ ____ ________ __________ ________ __________ _______.
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