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1 markAcid/Base Equilibria

CAPE Chemistry Unit 1 · 2005 · Paper 1 · Question 8(a)(i)

Describe the property of the nuclei that allows them to be detected in NMR analysis.

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  1. 8(a)(ii)Give the symbols for the TWO main nuclei found in organic molecules that are detected by NMR analysis.[1 mark]
  2. 8(a)(iii)State the changes that occur in the molecules of a sample when subjected first to an external magnetic field and then to radio wave signals.[2 marks]
  3. 8(b)(i)Which TWO functional groupings are indicated by the chemical shift values? Explain your reasoning.[3 marks]
  4. 8(b)(ii)Suggest a structure for the organic compound C₉H₁₀O.[3 marks]

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