Question 1
Which orbitals are involved in the C–O sigma bond in acetone, shown below?

◦ C
sp–O
sp◦ C
sp–O
p◦ C
sp3–O
sp3◦ C
sp2–O
sp2◦ C
p–O
pQuestion 2
Which of the following best describes the orbitals involved in the formation of the C=O bond in acetone, shown below?

◦ σ = C
sp - O
sp and π = C
p - O
p◦ σ = C
sp2 - O
sp2 and π = C
sp2 - O
sp2◦ σ = C
sp2 - O
sp2 and π = C
p - O
p◦ σ = C
sp3 - O
sp2 and π = C
p - O
p◦ σ = C
p - O
p and π = C
sp2 - O
sp2