Quiz on UV-Visible Spectroscopy

What is the region of radiation for UV-Visible spectroscopy?

• 600-800 nm

• 400-600 nm

• 200-400 nm

• 100-200 nm

Which type of transition requires high energy in UV-Visible spectroscopy?

• n - p* transitions

• σ - σ* transitions

• n - s* transitions

• p - p* transitions

What is the concentration range typically used in UV-Visible spectroscopy?

• 0.1–1 μg/ml

• 1–10 μg/ml

• 10–100 μg/ml

• 100–1000 μg/ml

What is the absorbance in UV-Visible spectroscopy directly proportional to?

• Wavelength

• Concentration

• pH

• Temperature

Which transition is associated with the absorption maximum of acetone?

• p - p* transition

• σ - σ* transition

• n - s* transition

• n - p* transition

What is the term used for the highest absorption intensity in an electronic spectrum?

• Color density

• Extinction

• Absorbance

• λMax

Which of the following is a drawback of UV-Visible spectroscopy?

• High selectivity

• Complex procedure

• Low selectivity

• High cost

What type of transition is most common in organic compounds?

• n - s* transitions

• σ - σ* transitions

• n - p* and p - p* transitions

• p - s* transitions

What is the typical wavelength range for n - s* transitions?

• 100 - 150 nm

• 180 - 250 nm

• 250 - 300 nm

• 300 - 400 nm