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1 markPaper 1 · Multiple choiceInfrared Spectroscopy

CAPE Chemistry Unit 2 · 2017 · Paper 1 · Question Q23

In the infrared spectrum of an organic compound, a strong band is observed at 3000\text{ cm}^{-1}. The MOST likely explanation is that

  1. (A)radiation is absorbed and causes the C-H bonds to vibrate
  2. (B)protons absorb infrared radiation at this frequency
  3. (C)the compound is being decomposed by the radiation
  4. (D)bonding electrons absorb radiation and are excited to a higher level

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