C1A Practice Exam for AQA Science B

Contains key questions to help you practice for your C1 exam.

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  • Created on: 14-06-11 12:53
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CHEMISTRY SPECIMEN PAPER
Time Allowed: 45 mins Maximum Marks: 50
Name: Form:
1. This question is about Polymers.
a. What is a polymer made of? [1]
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b. Draw the structure of a long chain of polyethene. [2]
c. Describe the properties of polymers including which alkene is used for
its production. [3]
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d. What is the difference between a monomer and a polymer? [1]
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2. This question is about crude oil.
a. What substance is crude oil? [1]
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b. When hydrocarbon burns in plenty of air, what are the two main
products? [1]
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c. How does a catalyst work? [2]
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d. An alkane with two carbon atoms has a lower melting point than an
alkane with ten.
i. What is its state at room temperature? [1]
ii. Describe why this is the case. [2]
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What is the general formula for an alkane? [1]
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iv. Using your answer in part `iii', how many hydrogen atoms would
an alkane with 5 carbon atoms have? What is the name of this
alkane? [2]
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e. Describe the process of fractional distillation. [4]
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f. Describe the process of cracking. [4]
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3. This question is about bonding.
a.…read more

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What are the properties of giant covalent structures? [4]
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e. Describe why graphite can conduct electricity. [4]
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f. Why are metals good conductors of electricity? [3]
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g. Use the periodic table to find the bonding that occurs between:
i. K + O [1]
ii. Na + Cl [1]
iii. C + O [1]
iv. Al [1]
h.…read more

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