5659364
Questão 1
Questão
Write the correct general formula for Alkanes (no spaces!)
C[blank_start]n[blank_end]H[blank_start]2n+2[blank_end]
Responda
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n
-
2n+2
Questão 2
Questão
Write the correct general formula for Cycloalkanes (no spaces!)
C[blank_start]n[blank_end]H[blank_start]2n[blank_end]
Responda
-
n
-
2n
Questão 3
Questão
Complete these stages of the Fractional Distillation of Crude Oil:
Crude oil is vaporised at [blank_start]350[blank_end]C.
Crude oil goes into the Fractionating [blank_start]Column[blank_end] and rises up through it.
As the crude oil ascends, it cools and the various fractions are drawn off according to their boiling points.
[blank_start]Larger[blank_end] fractions don't evaporate at all but run out of the bottom.
[blank_start]Smaller[blank_end] fractions are drawn off as [blank_start]gases[blank_end] out of the top of the column.
Responda
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350
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250
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1050
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750
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gases
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liquids
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solids
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Column
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Chimney
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Tube
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Pipe
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Larger
-
Smaller
-
Smaller
-
Larger
Questão 4
Questão
The possible products of Cracking are:
Responda
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a Haloalkane
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an Alkane
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an Alkene
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an Amine
Questão 5
Responda
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takes place at high temperatures (1000C)
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produces a lot of Alkenes
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requires the presence of a zeolite catalyst
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requires a slight pressure
Questão 6
Responda
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takes place at high temperatures (1000C)
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requires the presence of a zeolite catalyst
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requires slight pressure
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produces a lot of Alkenes
Questão 7
Questão
Ethene is burnt completely in the presence of oxygen.
Select the correct equation for this reaction.
Responda
Questão 8
Questão
Ethene is burnt incompletely in the presence of oxygen to form a gaseous, poisonous product.
Select the correct equation for this reaction.
Responda
Questão 9
Questão
Ethene is burnt incompletely to form a solid product.
Select the correct equation for the reaction.
Responda
Questão 10
Responda
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Water Vapour
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Carbon Dioxide
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Methane
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Hydrogen
Questão 11
Questão
Oxides of Nitrogen are produced when high pressure and temperature cause the nitrogen and oxygen atoms in the air to react.
Responda
- True
- False
Questão 12
Questão
A Photochemical Smog is formed when unburned Hydrocarbons (Volatile Organic Compounds) and Nitrogen Oxides react in the presence of sunlight.
Responda
- True
- False
Questão 13
Questão
Ground-Level Ozone is a minor component of Photochemical Smog.
Responda
- True
- False
Questão 14
Questão
Select all the negative effects of Ozone.
Responda
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It irritates the eyes
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It aggravates circulatory problems
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It causes lung damage
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It causes skin cancer
Questão 15
Questão
Which metals could the catalyst in a Catalytic Converter be made of?
Responda
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Platinum
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Rhodium
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Magnesium
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Palladium
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Lead
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Aluminium
Questão 16
Questão
Which reactions will the catalyst in a Catalytic Converter promote?
Responda
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Reduction of Nitrogen Oxides
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Oxidation of unburned Hydrocarbons
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Oxidation of Carbon Dioxide
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Reduction of Carbon Monoxide
Questão 17
Questão
Why do larger hydrocarbons have a higher boiling point than smaller ones?
Responda
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There are more Van der Waal's forces between the molecules
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They are heavier
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There are more atoms to give energy to
Questão 18
Questão
The alkaline slurry used to remove Sulfur Dioxide from flue gases can be made of:
Responda
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Calcium Carbonate
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Calcium Oxide
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Calcium Chloride
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Calcium Hydroxide
Questão 19
Questão
Acid Rain is formed when Sulfur Dioxide reacts with the water in the clouds to form Sulfuric Acid.
Responda
- True
- False
Questão 20
Questão
Select all the effects that Acid Rain has on the environment.
Responda
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Destruction of vegetation
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Corrosion of limestone buildings and statues
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Alkalisation of lakes
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Initiation of landslides
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