In the mass spectrum of 1,2-dichloroethane,what is the m/z of the molecular ion peak of greatest intensity?

Question

Quizplus · Accepted Answer

The molecular weight of 1,2-dichloroethane is 98 g/mol (2 x 35.5 for chlorine atoms + 2 x 12.01 for carbon and 2 x 1.01 for hydrogen atoms). Therefore, the molecular ion peak of greatest intensity should correspond to the m/z ratio of 98. None of the other options are a possible molecular ion peak for this compound.

In the Mass Spectrum of 1,2-Dichloroethane,what Is the M/z of the Molecular