Spectroscopy and the Electromagnetic Spectrum

AP Chemistry· difficulty 3/5

A strong, broad IR absorption near 3300 cm⁻¹ is characteristic of

  • A

    C=O stretch

  • B

    O-H or N-H stretch (hydrogen-bonded)

    check_circle
  • C

    Aromatic ring

  • D

    C-C stretch

Explanation

H-bonded O-H (alcohols, carboxylic acids) gives broad absorbance ~3200-3500 cm⁻¹. C=O is sharp, near 1700 cm⁻¹.

Want 10 more like this — adaptive to your weak spots?

Related questions