Write the structural of all the possible isomers of dichloroethene. Which of them will have zero dipole moment?

Explanation

To solve the problem of identifying all the possible isomers of dichloroethene (C2H2Cl2) and determining which of them have a zero dipole moment, we will follow these steps:

### Step 1: Identify the possible isomers of dichloroethene
Dichloroethene can exist in two geometric isomers due to the presence of a double bond between the two carbon atoms. The two isomers are:

1. **Cis-dichloroethene**: In this isomer, the two chlorine atoms are on the same side of the double bond.
2. **Trans-dichloroethene**: In this isomer, the two chlorine atoms are on opposite sides of the double bond.

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