WorksheetsUnit 2 - Alkanes/Alkenes/Cycloalkanes
Total questions: 25
Worksheet time: 41mins
A homologous series is a family of organic compounds with
similar chemical properties and same general formula as found on Table Q
different chemical properties and different general formula as found on Table P
Reorder the following prefixes from least to most carbons.
meth-
prop-
but-
hex-
oct-
Organise these options into the right categories
Tells us the number of hydrogens and carbons
Breaks the main chain into smaller chunks
Displays all the bonds in the molecule
Branches present and put in brackets
Doesn't indicate structure
Shows carbon to carbon single and double bonds clearly
Using the formula : CnH(2n+2)
Calculate the number of hydrogen atoms of a hydrocarbon with 40 carbons.
(a)
Which of the following molecules is an alkene?
C2H6
C2H4
CH4
C3H8
(a) are molecules which have the same (b) but a different (c)
Which of the following shows the structure of ethene?
Which of the following shows the structure of propene?
What is the name of this molecule?
But-1-ene
Prop-2-ene
Pent-2-ene
Hex-3-ene
Molecules with the same molecular formulae but different structural formulae are known as
(a)
Organize these options into the right categories
propene and cyclopropane
butane and 2-methylpropane
pentane and 2,2-dimethylpropane
octane and octene
Isomer of 2-methylhexane is
4-ethylhexane
4-methylhexane
3-methylhexane
1-methylpentane
Label the hydrocarbon appropriately.
Match the following branched molecules to the correct name
2-methylpropane
2-methylbutane
2,2-dimethylbutane
2,3,4-trimethylhex-1-ene
3-ethyl-3-methylhexane
Name this molecule (all letters are lower case, remember dashes and commas if they are required)
(a)
Name this molecule (all letters are lower case, remember dashes and commas if they are required)
(a)
Name this molecule (all letters are lower case, remember dashes and commas if they are required)
(a)
Name this molecule (all letters are lower case, remember dashes and commas if they are required)
(a)
Name this molecule (all letters are lower case, remember dashes and commas if they are required)
(a)
Organise these options into the right categories
General formula = CnH2n+2
Carbons in ring structure
contain C to C single bonds only in straight or branched chain
contain a least one C to C double bond
isomers of the alkenes
all names end in -ene
first member has only 1 carbon
first member has 2 carbons
first member has 3 carbon atoms
Organise these options into the right categories
insoluble in water
soluble in water
volatile
not volatile
pleasant aroma
non-flammable
short hydrocarbons are often colourless gases/liquids
always brightly coloured
