Question

Determine the number of σ bonds and π bonds in each of the molecules. H 2 C = CCl 2 number of σ bonds: 1 number of π bonds: 1 HOOC − COOH number of σ bonds: 1 number of π bonds: 0 FHC = C = CHF number of σ bonds: number of π bonds: This molecule consists of a four membered carbon ring with two double bonds, one between carbons 1 and 2 and the other between carbons 3 and 4. A hydrogen is attached to each of the four carbons. Number of σ bonds: number of π bonds:

Answer 1

The molecule H2C=CCl2 has 1 σ bond and 1 π bond. The molecule HOOC-COOH has 1 σ bond and 0 π bonds. The molecule FHC=C=CHF has 4 σ bonds and 2 π bonds.

Step-by-step explanation:

There are six C-H bonds and one C-C bond, for a total of seven single bonds (σ bonds). In addition, there are two double bonds, each consisting of one σ bond and one π bond. Therefore, the molecule H2C=CCl2 has one σ bond and one π bond.

This molecule HOOC-COOH contains only single bonds (σ bonds) and no double bonds (π bonds). Therefore, the number of σ bonds is 1 and the number of π bonds is 0.

The molecule FHC=C=CHF has four membered carbon ring with two double bonds. Each double bond consists of one σ bond and one π bond. Additionally, each carbon is attached to a hydrogen, forming four C-H single bonds (σ bonds). Therefore, the number of σ bonds in this molecule is 4 and the number of π bonds is 2.