Use the following to make a set of notes on this topic
8.1 Recall that hydrocarbons are _______ that contain _______ and hydrogen only.
5 points
5
Question 2
2.
Make notes
8.2 Describe crude oil as:
a) a complex _______ of _______
b) containing _______ in which carbon atoms are in chains or rings
c) an important source of useful substances (_______ and feedstock for the petrochemical industry)
d) a _______ resource. (will run out)
1 point
1
Question 3
3.
What is crude oil described as?
1 point
1
Question 4
4.
How is crude oil separated into simpler mixtures?
4 points
4
Question 5
5.
Fractional distillation and hydrocarbon properties
1 = _____________
2 = _____________
3 = _________________
4 = ________________
Other Answer Choices:
the shortest
condense
vaporise
the longest
6 points
6
Question 6
6.
Copy this diagram into your notes and add the comments below.
From the bottom to the top the temperature __________
From the bottom to the top the number of carbon and hydrogen atoms in the hydrocarbon __________
From the bottom to the top the chain length __________
From the bottom to the top the viscosity __________
From the bottom to the top the volatility __________
From the bottom to the top the flammability (ease of ignition) __________
1 point
1
Question 7
7.
6 points
6
Question 8
8.
Make a table of the fractions and their typical uses
Draggable item
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Corresponding Item
petrol
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used in domestic heating and cooking
bitumen
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used as fuel for cars
diesel oil
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used as fuel for aircraft
gases,
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used as fuel for some cars and trains
fuel oil,
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used as fuel for large ships and in some power stations
kerosene
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used to surface roads and roofs .
1 point
1
Question 9
9.
What is petrol used as?
1 point
1
Question 10
10.
How do hydrocarbons in different fractions differ?
6 points
6
Question 11
11.
Complete and copy into your notes
8.6 Explain an homologous series as a series of ______________ which:
a) have the same general ____________ ((e.g. CnH2n+2 for alkanes)
b) differ by ________ in molecular formulae from neighbouring compounds. (The alkanes methane, ethane, propane and butane have the formulae CH4, C2H6, C3H8 and C4H10)
c) show a gradual variation in physical properties, as exemplified by their ____________ points which increases as the chain length ______________
d) have similar chemical properties for example alkanes can undergo _______________
Other Answer Choices:
increases
compounds
formula
combustion
CH2
boiling
1 point
1
Question 12
12.
Displayed formula of methane
1 point
1
Question 13
13.
Displayed formula of ethene
1 point
1
Question 14
14.
Displayed formula of ethene
1 point
1
Question 15
15.
Homologous series (family) and general formula
1 point
1
Question 16
16.
Homologous series (family) and general formula
1 point
1
Question 17
17.
option 1
option 2
option 3
option 4
Structure 1
Structure 2
Structure 3
Structure 4
1 point
1
Question 18
18.
Match the diagram to the category�
Alkane
Polymer
alkene
1 point
1
Question 19
19.
Crude oil molecule
1 point
1
Question 20
20.
Propene structure
1 point
1
Question 21
21.
Propene formula
1 point
1
Question 22
22.
The main difference between alkenes and alkanes is that alkenes have . . .
1 point
1
Question 23
23.
Soot (carbon)
Water (0% in dry air)
Oxygen (21%)
Carbon dioxide (0.03%)
Which gas in the air reacts with the hydrocarbon?
The gas that condenses and collects in the U tube is
The gas that makes the limewater go cloudy is
Deposits of ________________ would form on the funnel