Which of the following statements is/are CORRECT according to valence bond theory?
1)Elelctron density in a pi bond is greatest along the axis of the bond.
2)The overlap of two adjacent p orbitals can result in a sigma bond or a pi bond,depending on the p-orbital orientations.
3)Bonds are formed in molecules through the overlap of valence electron atomic orbitals.
A) 1 only
B) 2 only
C) 3 only
D) 2 and 3
E) 1,2,and 3

Question

Quizplus · Accepted Answer

Statement 2 is correct because the overlap of two adjacent p orbitals that are in the same plane (i.e. have the same orientation) forms a pi bond, while the overlap of two adjacent p orbitals that are end-to-end (i.e. perpendicular to each other) forms a sigma bond.
Statement 3 is correct because valence bond theory explains that covalent bonds are formed when the valence electron atomic orbitals of two atoms overlap and share electrons.
Statement 1 is incorrect because electron density in a pi bond is actually concentrated above and below the axis of the bond, rather than along the axis.

Which of the Following Statements Is/are CORRECT According to Valence