Analytical Chemistry

Question 1

What is the principle of UV-Vis spectroscopy?

Accepted Answer

Measurement of absorption

Answer

Measurement of fluorescence

Answer

Measurement of conductivity

Answer

Measurement of ionization energy

Question 2

Which technique separates compounds based on their boiling points?

Accepted Answer

Gas chromatography

Answer

Mass spectrometry

Answer

NMR spectroscopy

Answer

IR spectroscopy

Question 3

What is the purpose of a reference electrode in potentiometry?

Accepted Answer

To provide a stable potential

Answer

To control temperature

Answer

To measure current

Answer

To ionize the sample

Question 4

Which of the following is a primary standard in titration?

Accepted Answer

Sodium carbonate

Answer

Hydrochloric acid

Answer

Sodium hydroxide

Answer

Ammonium hydroxide

Question 5

What is the principle of gravimetric analysis?

Accepted Answer

Measurement of mass

Answer

Measurement of light absorption

Answer

Measurement of volume

Answer

Measurement of conductivity

Question 6

Which chromatography technique uses a liquid mobile phase?

Accepted Answer

Liquid chromatography

Answer

Gas chromatography

Answer

Thin-layer chromatography

Answer

Ion-exchange chromatography