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CSEC Chemistry · May/June 2014 · Paper 2 · Question 3(b)(i)

Compound A (H₂C=CH-CH₃) and Compound B (CH₃-CH₂-CH₃) are two hydrocarbons that are gases at room temperature.

Describe briefly ONE test that could be used to distinguish between Compound A and Compound B. Test: Observation:

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Other parts of this question

  1. 3(a)(i)Organic molecules can exist as different structural isomers. Define the term 'structural isomers'. Definition:[2 marks]
  2. 3(a)(ii)Molecules with the formula C₄H₁₀ can exist as structural isomers. In the space provided below, draw FULLY DISPLAYED structures of TWO isomers with formula…[4 marks]
  3. 3(b)(ii)Both Compound A and Compound B burn in oxygen. Write a balanced chemical equation for the burning of Compound B in excess oxygen. Equation:[2 marks]
  4. 3(b)(iii)Give ONE use EACH for Compound A and Compound B. Use for Compound A: Use for Compound B:[2 marks]
  5. 3(c)(i)Identify X.[1 mark]
  6. 3(c)(ii)State the name of Compound D and the homologous series to which it belongs. Name: Homologous series:[1 mark]

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