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
Because %T cannot be measured as accurately as absorbance
None of these

ANSWER DOWNLOAD EXAMIANS APP

Spectroscopy
Vibrational spectroscopy is

a large mass on a weak spring
an Infrared spectroscopy
a class of spectroscopic techniques which analyzes molecular motions
a flashlight through a prism and shake it

ANSWER DOWNLOAD EXAMIANS APP

Spectroscopy
Why are rotational transitions of little use to a spectroscopist?

All of these
Because the energy required to induce a rotational transition is so small that it cannot be measured
Because rotational transitions are extremely rare
Because, in liquids and solids, spectral lines corresponding to rotational transitions are broadened as the result of molecular collisions and other interactions

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Spectroscopy