Spectroscopy UV-Vis spectroscopy of organic compounds is usually concerned with which electronic transition(s)? σ → σ* none of these n → π* and π → π* n → σ* σ → σ* none of these n → π* and π → π* n → σ* ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Where does a carbonyl (C=0) stretch appear in an IR spectrum? 1870-1650 3640-3250 160-110 1740-1720 1870-1650 3640-3250 160-110 1740-1720 ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy In the equation, A = ε bc, what quantity is represented by "ε"? Path length None of these Molar absorbtivity Absorbtivity Path length None of these Molar absorbtivity Absorbtivity ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following is not an IR vibrational mode? Scissoring Stretching Rolling Rocking Scissoring Stretching Rolling Rocking ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following components of a monochromator is the dispersing element? The diffraction grating The entrance slit The collimating lens None of these The diffraction grating The entrance slit The collimating lens None of these ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Why is it generally preferable to use absorbance as a measure of absorption rather than % transmittance? Because absorbance is proportional to the concentration of the analyte, whereas %T is not Because %T is dependant on the power of the incident radiation None of these Because %T cannot be measured as accurately as absorbance Because absorbance is proportional to the concentration of the analyte, whereas %T is not Because %T is dependant on the power of the incident radiation None of these Because %T cannot be measured as accurately as absorbance ANSWER DOWNLOAD EXAMIANS APP
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