Which of the following fragment peaks would not be present in the mass spectrum of n-hexane?

Name: Which of the following fragment peaks would not be present in the mass spectrum of n-hexane?
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Question

Quizplus · Accepted Answer

A fragment peak at m/z 87 would indicate the loss of a methyl group and a tertiary carbocation, which is not possible in n-hexane. The other fragment peaks listed (m/z 71, 57, 43, and 29) are all possible in the mass spectrum of n-hexane.

Which of the Following Fragment Peaks Would Not Be Present