Hydrocarbons Part 1 Nat 5
1 2 3 4 5 6
7 8 9 10 11 12
13 14 1815
19
16 17
2120 22 2423
Name the family of hydrocarbons which the
following belong to
ethane, hexane, propane
Alkanes
Name the following hydrocarbonsCH4 C3H8 C7H16
methane propane heptane
Name the following alkane
2,3,dimethylpentane
C C C C C
C
C
H
H
H
H
H H
H
H
H
H
HHH
HHH
Draw a full structural formula for2,2,dimethylbutane ?
C C C C H
C
C
H
H
H
H
H H
H
HHH
HHH
State the general formula for the alkanes
CnH2n+2
What is meant by a homologous series?
A group of compounds with the same general
formula and similar chemical properties
State the general formula of the alkenes.
CnH2n
Name the first member of the alkene family and give its molecular formula?
Ethene C2H4
What type of bond is found between two carbon atoms in an alkene molecule?
A carbon to carbon double bond C=C
Name the following hydrocarbon?
Pent-2-ene
C C C C CH
H
H
H
H H
H
HHH
Draw a structural formula for the following
But-2-ene But-1-ene
H C C C C
H
H H
H
HHH
C C C C HH
H
H
H
H
HH
State the general formula of the cycloalkanes?
CnH2n
Name the first member of the cycloalkane family.
Cyclopropane C3H6
Name the following hydrocarbon.
cyclopentane
CCC
C C
H
H
H
HH
H
H
H
HH
Draw a structural formula for cyclopropane.
CCC
H H
H
HH
H
What are isomers?
Compounds with the same molecular formulae
but different structural formulae.
Name an isomer of pent-1-ene which belongs to the same homologous
series.
Pent-2-ene
Name an isomer of pent-1-ene which belongs to a different
homologous series.
Cyclopentane
Name the two hydrocarbon families which are isomers of each other.
Alkenes and cycloalkanes - both have the
general formula CnH2n
How can an alkanol be identified?
From the name ending - ol and the hydroxyl group
(OH)
Name the following compound.
H C C C C
H
H H
H
HHOH
H H
Butan-2-ol
Draw structural formula for pentan-2-ol and pentan-3-ol.
H C C C C
H
H H
C
HHOH
H H H
H
H
H C C C C
H
H H
C
HHH
H OH H
H
H
How can an alkanoic acid be identified?
By the ‘oic’ name ending and the carboxyl group COOH
C OH
O
Name the following compound
H C C C C
H
H O
OH
HH
H H
BUTANOIC ACID