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3 marksStructure and Formulae

CAPE Chemistry Unit 2 · 2016 · Paper 2 · Question 2(c)(ii)

The IR spectrum of organic compound Y has major absorption peaks at 3350-3500 cm⁻¹ and 1680-1800 cm⁻¹. Y has a relative molecular mass of 75 and forms a neutral aqueous solution.

State the name of Compound Y and draw its displayed formula.

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Other parts of this question

  1. 2(a)Explain the origin of infrared (IR) absorption by compounds.[3 marks]
  2. 2(b)State the properties of compounds which absorb IR radiation.[2 marks]
  3. 2(c)(i)Identify the groups responsible for the above absorptions.[2 marks]
  4. 2(d)Describe the steps taken in the preparation of a solid sample for IR analysis.[4 marks]
  5. 2(e)State ONE limitation of IR spectroscopy.[1 mark]

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