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7.2 Reactions of alkenes and alcohols

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Question 10

Hydrocarbon X is an alkene. One molecule of X contains 24 atoms in total.

a.

Calculate the number of carbon atoms in one molecule of X.

[2]
b.

Give the molecular formulae of X and of the alkane with the same number of carbon atoms as X.

[2]
c.

A student changes the displayed formula of X by replacing the C=C\text{C}=\text{C}C=C bond with a C−C\text{C}-\text{C}C−C bond but makes no other change. The student claims that the result is a correct displayed formula for the alkane.

Evaluate the student's claim.

[2]
Markscheme

7.2 Reactions of alkenes and alcohols Questions

  1. GCSE
  2. /Chemistry
  3. /7.2 Reactions of alkenes and alcohols

97 exam-style questions on AQA GCSE Chemistry 7.2 Reactions of alkenes and alcohols, covering 7.2.1 Structure and formulae of alkenes, 7.2.2 Reactions of alkenes, 7.2.3 Alcohols, 7.2.4a Carboxylic acids, and 7.2.4b Carboxylic acids as weak acids. Each one has a worked solution and a mark scheme showing where the marks go.

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