CHM 1046C Name:_____________________

Module 4iii - Part S: Sigma and Pi Bonds 1 point

Note Figures 9.30 and 9.31 formation of Sigma σ and Pi π Bonds !

1. Sketch the hybrid orbitals for ethane (C₂H₄) showing the 5 sigma bonds (see Figure 9.32)

2. Sketch the p-p orbital overlap in ethane (figure 9.32 page 436)

3. Sketch the hybrid orbitals for formaldehyde (CH₂O ) showing the 3 sigma bonds (see Figure 9.34)

4. Sketch the p-p orbital overlap in formaldehyde (CH₂O ) (figure 9.34 page 438)

5. Sketch the hybrid orbitals for Acetylene (C₂H₂ ) showing the 3 sigma bonds (see Figure 9.35)

6. Sketch the p-p orbital overlap in Acetylene (C₂H₂ ) (figure 9.35 page 439)

Reading Reference Jespersen 7th: Section 9.6

Note Brief Summary page 439.

Try Practice Exercises 9.20 and 9.21 page 440

Answer Review Questions # 9.30-#9.34 Page 409

Try Review Problems #9.103-#9.110

Bonus M-4iii S1 Delta Bond 1 Point:

Research the internet and explain a delta bond, and make sketches below: