Q. In the equation, A = ε bc, what quantity is represented by "ε"?

View solution

Q. Why must the voltage supplied to a tungsten lamp be very stable?

View solution

Q. Where does a carbonyl (C=0) stretch appear in an IR spectrum?

View solution

Q. What is the relationship between wavelength and wave number?

View solution

Q. In the intersystem crossing

View solution

Q. Why must the radiation source for fluorescence spectrometry be more powerful than for absorption spectroscopy?

View solution

Q. Why do fluorescence spectrometers often use double-beam optics?

View solution

Q. For a molecule to absorb IR, why must the molecule's vibrations cause fluctuations in the dipole moment of the molecule?

View solution

Q. Internal conversion is where

View solution

Q. Why phosphorescence measurements are usually made at a low temperature?

View solution

Q. Fluorescence occurs when

View solution

Q. Thin layer chromatography is

View solution

Q. In gas chromatography, the basis for separation of the components of the volatile material is the difference in

View solution

Q. In reverse phase chromatography, the stationary phase is made

View solution

Q. Ion exchange chromatography is based on the

View solution

Q. The general expression for the appearance of a solute in an effluent is (where V is the elution volume of a substance , V0 void volume, kD distribution constant and Vi internal water volume)

View solution

Q. A combination of paper chromatography and electrophoresis involves

View solution

Q. HPLC stands for

View solution

Q. The eluent strength is a measure of

View solution

Q. HPLC methods include

View solution