MDCAT Chemistry MCQ #876

How do emission and absorption spectra differ fundamentally?

MDCAT Chemistry MCQ #876

  1. Question 1

    Q1. How do emission and absorption spectra differ fundamentally?

    • A) Emission spectra show bright lines, absorption dark lines
    • B) Emission requires high temperature, absorption needs low temperature
    • C) Emission is from excited atoms, absorption from ground state
    • D) Emission involves photons, absorption electrons

    Answer: Emission spectra show bright lines, absorption dark lines

    Explanation: Emission produces bright lines (excited atoms emitting), absorption dark lines (ground state atoms absorbing). Option C is partially correct but less precise.