The phosphorescence spectrum of the excited species is due to which tr – McqOptions

MCQOPTIONS

1.	The phosphorescence spectrum of the excited species is due to which transition?
A.	Singlet to triplet transitions
B.	Triplet to singlet transitions
C.	Vibration modes
D.	Electron spin transitions
Answer» C. Vibration modes

Discussion

No Comment Found

Related MCQs

Why Monomeric saturated aliphatic carboxylic acids show carbonyl stretching frequency near 1760 cm<sup>-1</sup>, while saturated aliphatic ketones near 1720 cm<sup>-1</sup>?
The phosphorescence spectrum of the excited species is due to which transition?
A compound C<sub>8</sub> H<sub>6</sub> decolorizes Br<sub>2</sub> in CCl<sub>4</sub> and gives a white precipitate with Tollen s reagent. It has sharp band at 3300 cm<sup>-l</sup> and weak bands at 3085, 2110 cm<sup>-l</sup>. What is this compound?
Why in the IR spectrum of Benzoyl chloride, a weak band near 1750 cm<sup>-1</sup> is formed?