QUIZ #8

Question 1: Shown here is the molecule histamine. There are three nitrogen atoms. Within valence bond theory, which hybridization scheme is adopted by the majority of N atoms in this molecule?

sp
sp²
sp³
sp³d
sp³d²

Question 2: The peroxide ion, , is readily formed from molecular oxygen. What is the bond order for this ion as predicted by Molecular Orbital Theory?

0.5
1
1.5
2
2.5

Question 3: This molecule is used as a pesticide. The highlighted carbon atom is sp hybridized. The molecule is planar and is defined as lying in the xy plane, as shown. Which carbon atomic orbitals participate in p-bond formation with the N and S atoms?

sp, sp
p_x, p_y
sp, p_y
p_x, p_z
p_y, p_z

Question 4: Which molecule or ion in this list is NOT predicted to be paramaganetic by Molecular Orbital theory?

NO
OF^-
Be₂^2-
Ne₂⁺
CN

Question 5: This is a spectrum of the molecule phenol. Determine the spectroscopic technique used to produce this spectrum and identify the molecular property that is being examined and reported in this spectrum.

Nuclear Spin
Electron Spin
Molecular Vibration
Valence Electron Structure
Core Electron Structure