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2.3 Properties of materials

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Question 19

A molecule contains a ring of five carbon atoms. Each carbon atom is joined by single bonds to the two neighbouring carbon atoms, and all its remaining bonds are to hydrogen atoms. The molecule contains no other atoms.

Which formula represents the molecule?

[1]
A

C5H10\mathrm{C_{5}H_{10}}C5​H10​

B

C5H20\mathrm{C_{5}H_{20}}C5​H20​

C

C5H15\mathrm{C_{5}H_{15}}C5​H15​

D

C5H5\mathrm{C_{5}H_{5}}C5​H5​

Markscheme

2.3 Properties of materials Questions

  1. GCSE
  2. /Chemistry
  3. /2.3 Properties of materials

122 exam-style questions on OCR GCSE Chemistry 2.3 Properties of materials, covering 2.3.1 Carbon bonding and the variety of organic compounds, 2.3.2 Diamond, graphite, fullerenes and graphene, 2.3.3 Bond strength, changes of state and predicting states, 2.3.4 Bulk properties and types of bonding, and 2.3.5 Nanoparticles: scale, surface area, uses and risks. Each one has a worked solution and a mark scheme showing where the marks go.

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