Skip to content
Back to quiz
6. What is the definition of retention time?
- The length (in metres) that the components travel through the column
- The length (in cm) that the components travel through the column
- Time taken for the component to pass through the column to the detector
- Time taken for the component to pass through the detector to the column
7. What is the stationary phase in TLC?
8. What is the most distinguishable peak in an infrared spectrum of a Carboxylic acid?
- The broad peak between 3200-3500 cm-1
- The very broad peak between 2500-3300 cm-1
- The peak between 1640-1750 cm-1
- The peak between 1000-1300 cm-1
9. TMS (tetramethylsilane) is used in NMR because........
- It doesnt produce a peak
- It is the reference value for chemical shifts
- It is the chemical shift value
- It is not affected by nuclear spin
10. What is the stationary phase in GC (gas chromatography)?
- Solid or gas
- Liquid or solid
- Liquid or gas
- Solid or aqueous solution
11. What is the process of separation in TLC (thin layer chromatography)?
- Adsorption
- Solubility
- Absorption
- Relative Solubility