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Chemistry

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10 questions

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  • 1. Multiple Choice
    2 minutes
    5 pts
  • 2. Multiple Choice
    5 minutes
    5 pts

    Sample of Li+2 ions in excited state when bombarded by photons of wavelength 54 nm gets to another excited state. In returning back to ground state a total of six different types of photons were emitted. Out of six types of photons, three have wavelength lass than 54nm. Then

    initial orbit number = 2

    final excited state = 5

    final exited state=6

    initial orbit no = 3

  • 3. Multiple Choice
    3 minutes
    5 pts

    A certain electronic transition from an excited state to ground state of the H atom in one or more step gives rise to three lines in the ultra violet region of the spectrum. How many lines does this transition produce in the infrared region of the spectrum :–

    1

    2

    3

    4

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