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Organic chemistry

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Question 12

To reduce reliance on fossil fuels, bio-poly(ethene) is synthesized using sugarcane. The harvested sugarcane is fermented to produce bio-ethanol, which is then catalytically converted to ethene, followed by polymerisation to poly(ethene).

Which row in the table below correctly classifies the reaction type for the conversion of bio-ethanol to ethene and the subsequent polymerisation of ethene to bio-poly(ethene)?

Conversion of bio-ethanol to ethenePolymerisation of etheneAEliminationAdditionBDehydrationCondensationCSubstitutionAdditionDHydrolysisCondensation \begin{array}{|c|l|l|} \hline & \textbf{Conversion of bio-ethanol to ethene} & \textbf{Polymerisation of ethene} \\ \hline \textbf{A} & \text{Elimination} & \text{Addition} \\ \hline \textbf{B} & \text{Dehydration} & \text{Condensation} \\ \hline \textbf{C} & \text{Substitution} & \text{Addition} \\ \hline \textbf{D} & \text{Hydrolysis} & \text{Condensation} \\ \hline \end{array} ABCD​Conversion of bio-ethanol to etheneEliminationDehydrationSubstitutionHydrolysis​Polymerisation of etheneAdditionCondensationAdditionCondensation​​
A

Row A

B

Row B

C

Row C

D

Row D

Markscheme

Organic chemistry Questions

  1. GCSE
  2. /Chemistry
  3. /Organic chemistry

83 exam-style questions on OCR GCSE Chemistry Organic chemistry. Each one has a worked solution and a mark scheme showing where the marks go.

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