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## Assignment ### 8.1. The compound 1,2 dichloroethane ($C_2H_4Cl_2$) is nonpolar, while *cis*-dichloroethylene ($C_2H_2Cl_2$) has a dipole moment: - **1,2 dichloroethane:** ``` Cl | H - C - C - H | H ``` - **cis-dichloroethylene:** ``` Cl / \ C = C...
## Assignment ### 8.1. The compound 1,2 dichloroethane ($C_2H_4Cl_2$) is nonpolar, while *cis*-dichloroethylene ($C_2H_2Cl_2$) has a dipole moment: - **1,2 dichloroethane:** ``` Cl | H - C - C - H | H ``` - **cis-dichloroethylene:** ``` Cl / \ C = C \ / H H ``` On the basis of bonding considerations, explain why 1, 2 dichloroethane is nonpolar but *cis*-dichloroethylene is polar. ### 8.2. Which of the following compounds has no isomer: - $CH_3CH_2CH_2Cl$ - $CH_3CHO$ - $CH_2=CHCl$ - $ClCH_2CH_2Cl$
