Chemistry Module 7 Flashcards
What is a homologous series
Group of compounds with the same general formula
What is the general formula for alkanes
CnH2n+2
What is the general formula for alkenes
CnH2n
What is the general formula for alkynes
CnH2n-2
Bond energy refers to
Bond strength, the amount of energy required to break a bond.The higher the bond energy the stronger the bond
Define primary, secondary and tertiary alcohol
primary alcohol ,,, the C bonded to OH is only bonded to one alkyl group
The C bonded to OH is only bonded to two alkyl group
The C bonded to OH is bonded to 3 alkyl group
What are the types of addition reactions
hydrogenation, halogenation and hydration
When H2 is added to an unsaturated hydrocarbon
What catalyst yes/no give eg , and product is formed
Catalyst: Yes, palladium, nickel, rhodium
Product: Alkane
When Halogens are added to an unsaturated hydrocarbon
What catalyst yes/no give eg , and product is formed
Catalyst: None
Product:Haloalkane
Why do unsaturated hydrocarbons not need a catalyst when reacting with halogens or hydrogen halides
Because they are more reactive
When Hydrogen Halides are added to an unsaturated hydrocarbon
What catalyst yes/no give eg , and product is formed
Catalyst: None
Products: Haloalkane
When H2O is added to an unsaturated hydrocarbon
What catalyst yes/no give eg , and product is formed
Catalyst: H2SO4 or H3PO4
Products: Alkanol
Temperature: 300
When adding H2 as a reagent and you do not want it to further react what do you do
Add Lindlar catalyst which acts as an inhibitor
What gives alcohols a higher boiling point than alkanes of a similar molar mass
Hydrogen bonding
large intermolecular forces
why do alkane molecules have a weak bonding
Because they are non-polar and form dispersion forces
