Which of the following is true about fluorescence intensity of the molecule? I Fluorescence is observed in planar molecules and its intensity increase with an increase in the number of aromatic rings II When zinc is added to a hydroxyl quinoline solution the fluorescence intensity increased due to the formation of a complex which increases the rigidity of the molecule. III On increasing the intensity of the incident radiation the fluorescence intensity increases IV Onincreasing the concentration of the fluorigenic molecule, the fluorescence intensity increases. A plot of intensity vs concentration exhibit a linear relation indefinitely in all concentration ranges. O a. I,II,IV O b. 1,II,III,IV Oc „II,II O d. II,III,IV

Which of the following is true about fluorescence intensity of the molecule? I Fluorescence is observed in planar molecules and its intensity increase with an increase in the number of aromatic rings II When zinc is added to a hydroxyl quinoline solution the fluorescence intensity increased due to the formation of a complex which increases the rigidity of the molecule. III On increasing the intensity of the incident radiation the fluorescence intensity increases IV Onincreasing the concentration of the fluorigenic molecule, the fluorescence intensity increases. A plot of intensity vs concentration exhibit a linear relation indefinitely in all concentration ranges. O a. I,II,IV O b. 1,II,III,IV Oc „II,II O d. II,III,IV

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter15: Molecular Luminescence Spectrometry

Section: Chapter Questions

Problem 15.15QAP: The following lifetimes were measured for the chloride quenching of quinine sulfate given in Example...

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