5659364
Pregunta 1
Pregunta
Write the correct general formula for Alkanes (no spaces!)
C[blank_start]n[blank_end]H[blank_start]2n+2[blank_end]
Respuesta
-
n
-
2n+2
Pregunta 2
Pregunta
Write the correct general formula for Cycloalkanes (no spaces!)
C[blank_start]n[blank_end]H[blank_start]2n[blank_end]
Respuesta
-
n
-
2n
Pregunta 3
Pregunta
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.
Respuesta
-
350
-
250
-
1050
-
750
-
gases
-
liquids
-
solids
-
Column
-
Chimney
-
Tube
-
Pipe
-
Larger
-
Smaller
-
Smaller
-
Larger
Pregunta 4
Pregunta
The possible products of Cracking are:
Respuesta
-
a Haloalkane
-
an Alkane
-
an Alkene
-
an Amine
Pregunta 5
Respuesta
-
takes place at high temperatures (1000C)
-
produces a lot of Alkenes
-
requires the presence of a zeolite catalyst
-
requires a slight pressure
Pregunta 6
Respuesta
-
takes place at high temperatures (1000C)
-
requires the presence of a zeolite catalyst
-
requires slight pressure
-
produces a lot of Alkenes
Pregunta 7
Pregunta
Ethene is burnt completely in the presence of oxygen.
Select the correct equation for this reaction.
Respuesta
Pregunta 8
Pregunta
Ethene is burnt incompletely in the presence of oxygen to form a gaseous, poisonous product.
Select the correct equation for this reaction.
Respuesta
Pregunta 9
Pregunta
Ethene is burnt incompletely to form a solid product.
Select the correct equation for the reaction.
Respuesta
Pregunta 10
Respuesta
-
Water Vapour
-
Carbon Dioxide
-
Methane
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Hydrogen
Pregunta 11
Pregunta
Oxides of Nitrogen are produced when high pressure and temperature cause the nitrogen and oxygen atoms in the air to react.
Respuesta
- True
- False
Pregunta 12
Pregunta
A Photochemical Smog is formed when unburned Hydrocarbons (Volatile Organic Compounds) and Nitrogen Oxides react in the presence of sunlight.
Respuesta
- True
- False
Pregunta 13
Pregunta
Ground-Level Ozone is a minor component of Photochemical Smog.
Respuesta
- True
- False
Pregunta 14
Pregunta
Select all the negative effects of Ozone.
Respuesta
-
It irritates the eyes
-
It aggravates circulatory problems
-
It causes lung damage
-
It causes skin cancer
Pregunta 15
Pregunta
Which metals could the catalyst in a Catalytic Converter be made of?
Respuesta
-
Platinum
-
Rhodium
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Magnesium
-
Palladium
-
Lead
-
Aluminium
Pregunta 16
Pregunta
Which reactions will the catalyst in a Catalytic Converter promote?
Respuesta
-
Reduction of Nitrogen Oxides
-
Oxidation of unburned Hydrocarbons
-
Oxidation of Carbon Dioxide
-
Reduction of Carbon Monoxide
Pregunta 17
Pregunta
Why do larger hydrocarbons have a higher boiling point than smaller ones?
Respuesta
-
There are more Van der Waal's forces between the molecules
-
They are heavier
-
There are more atoms to give energy to
Pregunta 18
Pregunta
The alkaline slurry used to remove Sulfur Dioxide from flue gases can be made of:
Respuesta
-
Calcium Carbonate
-
Calcium Oxide
-
Calcium Chloride
-
Calcium Hydroxide
Pregunta 19
Pregunta
Acid Rain is formed when Sulfur Dioxide reacts with the water in the clouds to form Sulfuric Acid.
Respuesta
- True
- False
Pregunta 20
Pregunta
Select all the effects that Acid Rain has on the environment.
Respuesta
-
Destruction of vegetation
-
Corrosion of limestone buildings and statues
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Alkalisation of lakes
-
Initiation of landslides
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