A student prepared cyclohexene by heating cyclohexanol with concentrated phosphoric acid - AQA - A-Level Chemistry - Question 2 - 2019 - Paper 2

To complete the apparatus diagram:

• Draw a thermometer in the flask to measure the temperature of the reaction mixture accurately, ensuring the bulb of the thermometer is at the same level as the liquid.
• Include a cooling condenser connected to the distillation flask, with its outer jacket receiving cold water at the bottom, and allow the water to exit at the top to facilitate cooling of the vapor.
• Ensure that the apparatus shows no gaps at any joints, indicating a proper seal to prevent vapor loss.