题目内容

To prepare 1000 mL 0.1 mol/L HCl solution, the volume of concentrated hydrochloric acid (12 mol/L) should be ( ).

A. 0.84 mL
B. 8.4 mL
C. 1.2 mL
D. 12 mL

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Which of the following processes does not affect the non-radiative relaxation process of excited-state molecules?

A. Vibrational relaxation
B. Internal conversion
C. Quench
D. Aggregation

Which of the following factors generally does not affect the fluorescence spectrum of a solution?

A. Excitation wavelength
B. pH
C. Solvent
D. Concentration

Emission spectra are typically independent of the excitation wavelength. This is known as Kasha's rule.

The fluorescence quantum yield is the ratio of the number of photons absorbed to the number of photons emitted.

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