Which one of the following compounds is consistent with the mass spectrum below? SDBS: National Institute of Advanced Industrial Science and Technology

Question

Which one of the following compounds is consistent with the mass spectrum below?  SDBS: National Institute of Advanced Industrial Science and Technology

Quizplus · Accepted Answer

Looking at the mass spectrum, there is a base peak at m/z 73 and a molecular ion peak at m/z 342. The fragment ions at m/z 299, 271, and 201 suggest the presence of a benzene ring in the compound. Option A contains a benzene ring and has a molecular ion peak at m/z 342, which matches the spectrum. The other options do not contain a benzene ring or have a different molecular ion peak.

Which One of the Following Compounds Is Consistent with the Mass