2. Why do 1-methylcyclohexene, 3-methylcyclohexene, and methylenecyclohexane distill before 2-methylcyclohexanol? 3. How does the infrared spectrum of methylenecyclohexane differ from 3-methylcyclohexene? 4. Why is it important to have an opening at the receiving end during a distillation? This is for a dehydration of 2-methylcyclohexanol lab and there is no IR spectra for methylenecyclohexane so I'm unsure of how to go about that question