Spectroscopy UV-Vis spectroscopy of organic compounds is usually concerned with which electronic transition(s)? none of these n → σ* σ → σ* n → π* and π → π* none of these n → σ* σ → σ* n → π* and π → π* ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following is not an IR vibrational mode? Scissoring Rolling Stretching Rocking Scissoring Rolling Stretching Rocking ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy In the past, IR spectra had to be aquired one wavelength at a time, which took a long time. Today quick spectra is due to the light is faster today that it used to be absence of broad spectrum of wavelenth the Fourier Transfer Algorithm allows us to scan all frequencies at once None of these light is faster today that it used to be absence of broad spectrum of wavelenth the Fourier Transfer Algorithm allows us to scan all frequencies at once 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 %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 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 ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following will oscillate the fastest? A large mass on a weak spring A small mass on a stiff spring A large mass on a stiff spring A small mass on a weak spring A large mass on a weak spring A small mass on a stiff spring A large mass on a stiff spring A small mass on a weak spring ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following relationships between absorbance and %transmittance is incorrect? A = log10 1 / T A = 2 - log10 %T All are correct A = log10 100 / %T A = log10 1 / T A = 2 - log10 %T All are correct A = log10 100 / %T ANSWER DOWNLOAD EXAMIANS APP
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