The Lewis structure of but-2-ene (C₄H₈) is shown below:

1) Draw 3 structural isomers of but-2-ene.

2) What is the hybridization of C₁ and C₂ and the molecular shape around these atoms?

3) What is the bond angle C₁-C₂-C₃?
What is the bond angle H-C₁-C₂?

4) Compare the bond length C₁-C₂ and C₂-C₃.

Question

The Lewis structure of but-2-ene (C₄H₈) is shown below:

1) Draw 3 structural isomers of but-2-ene.

2) What is the hybridization of C₁ and C₂ and the molecular shape around these atoms?

3) What is the bond angle C₁-C₂-C₃?
What is the bond angle H-C₁-C₂?

4) Compare the bond length C₁-C₂ and C₂-C₃.

| General Chemistry 1

Accepted Answer

1)

2) C₁ ⇒ 4 electron groups ⇒ sp³ ⇒ tetrahedral

C₂ ⇒ 3 electron groups ⇒ sp² ⇒ trigonal planar

3) C₂ is trigonal planar ⇒ bond angle C₁-C₂-C₃= 120°

C₁is tetrahedral ⇒ bond angle H-C₁-C₂ = 109.5°

4) C₁-C₂is a single bond while C₂-C₃ is a double bond ⇒ bond length C₁-C₂ > bond length C₂-C₃

Final - Question 1 | General Chemistry 1