Organic chemistry module 4

What is required to separate the aldehyde product in the oxidation of primary alcohols?

• Distillation

• Filtration

• Crystallization

• Evaporation

What is the relationship between the Mr of the halogen and bond enthalpy in haloalkanes?

• Greater Mr, higher bond enthalpy

• Greater Mr, lower bond enthalpy

• Lower Mr, lower bond enthalpy

• Mr does not affect bond enthalpy

What happens to the vapor in the distillation process?

• It is absorbed by the flask.

• It evaporates and escapes.

• It cools and condenses back into a liquid.

• It reacts with the condenser.

How is the boiling point of a substance determined using a Thiele tube?

• By heating the substance and observing when it evaporates

• By cooling the substance and observing when it freezes

• By heating the substance and observing when it condenses

• By mixing the substance with another liquid

What is a synthetic route?

• A method to increase temperature

• A route to produce a product from an organic compound

• A way to decrease pressure

• A method to change color

What is the purpose of infrared spectroscopy?

• To measure acidity

• To determine functional groups in organic compounds

• To test for unsaturation

• To identify metals

Why is the -OH acid group peak not a smooth curve?

• It overlaps with the C-H region

• It is too broad

• It is too narrow

• It is too sharp

What is produced when positive ions hit the negatively charged detection plate?

• A magnetic field

• A flow of charge

• A vacuum

• A light emission