2. Homologous Series 2 Flashcards
Explain what is meant by an “addition reaction”.
A reaction in which a smaller molecule joins to a larger molecule, breaking a double bond.
State the name of the reaction between an alkene and water.
Hydration.
State the name of the reaction between an alkene and hydrogen.
Hydrogenation
State the family that the products of the reaction between alkenes and halogens belong to.
Dihaloalkanes.
State the family that the products of the reaction between alkenes and water belong to.
Alcohols.
State the family that the products of the reaction between alkenes and hydrogen belong to.
Alkanes.
State a use of alcohols other than as fuels.
Fuels and solvents.
Give two reasons why alcohols are used as fuels.
They are highly flammable and burn with a clean flame.
Define “miscible”.
Can be mixed in any quantity without separation.
State which alcohols, from methanol to octanol, are miscible in water.
Methanol, ethanol and propanol.
As the size of the molecule increases, the solubility ______.
Decreases.
As the size of the molecule increases, the melting/boiling points ______.
Explain why this occurs.
Increase.
The strength of the intermolecular forces are stronger the larger the molecule is.
Name the functional group present in all alcohols.
Hydroxyl (-OH)
State whether the alcohols are saturated or unsaturated.
Saturated.
Give the general formula of the alcohols.
C(n)H(2n+1)OH
