1. Chemistry
2. Organic Chemistry
3. Stereochemistry, Bonding and Formation
4. 13335

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Suggest structure fragmentation patterns that account for the following observed peaks in the mass spectra.

A) 5-methyl-2-hexanone, m/e= 71, 58, 43

B) C6H5CH2OCH3, m/e= 122, 121, 91, 77

C) 1-bromopropane, m/e= 124,122, 43, 29, 15