CHEM 104 Module 5 Exam – Portage Learning (Organic Chemistry & Spectroscopy)

This document is a module exam for Portage Learning CHEM 104 (Module 5) covering organic chemistry functional groups, hydrocarbon types, and spectroscopy interpretation. Questions include identification of a C=C double bond, classification of an aromatic hydrocarbon, naming 1,4-dimethylcyclohexane, recognition of a carboxylic acid functional group, description of an ester containing a carbonyl (C=O) bond with an alkoxy group attached to the carbon, classification of the combustion reaction CH₃CH₂CH=CH₂ + 6O₂ → 4CO₂ + 4H₂O as an oxidation reaction (hydrocarbon converted to CO₂), identification of a mass spectrum, determination of the compound most likely to have given an SEM/EDS spectrum (NaHSO₄ – H is not detected by SEM/EDS), and IR spectroscopy interpretation for an organic compound with molecular formula C₄H₈O: peaks at 3000–2800 cm⁻¹ (alkane C–H stretch), 1720 cm⁻¹ (C=O stretch), and no peak at 2900–2700 cm⁻¹ (no O=C–H, ruling out aldehyde), consistent with a ketone (option B). Suitable for college chemistry students learning organic functional groups, hydrocarbon classification, oxidation reactions, mass spectrometry, SEM/EDS limitations, and IR spectroscopy for structural determination.