Which Molecular Formula Is Consistent with the Following Mass Spectrum

question 87

Multiple Choice

Which molecular formula is consistent with the following mass spectrum data? M^{+ .} at m/z= 78, relative height=23.5%
(M+1) ^{+ .} at m/z= 79, relative height=0.78%
(M+2) ^{+ .} at m/z= 80, relative height=7.5%

• A) C₆H₆
• B) C₃H₇Cl
• C) C₆H₈
• D) C₆H₉Cl
• E) none of these

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