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Dipole moment is shown by...

Dipole moment is shown by

A

1,4-dichlorobenzene

B

cis-1,2-dichloroethene

C

trans-1, 2-dicholroethene

D

trans-2,3-dichloro-2-pentene

Text Solution

AI Generated Solution

To determine which of the given compounds has a dipole moment, we need to analyze the molecular structures and the arrangement of the polar bonds in each compound. Here's a step-by-step solution: ### Step 1: Analyze 1,4-Dichlorobenzene 1. **Structure**: The structure consists of a benzene ring with two chlorine atoms attached at the 1 and 4 positions (para position). 2. **Polarity**: The two Cl atoms are symmetrically placed opposite each other. The dipole moments from each Cl cancel each other out. 3. **Conclusion**: The dipole moment is **0**. ### Step 2: Analyze 1,2-Dichloroethene (Cis) ...
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Polar covalent molecules exhibit dipole moment. Dipole moment is equal to the product of charge separation , q and the bond length d for the bond. Unit of dipole moment is debye. One debye is equal to 10^(-18) esu cm. Dipole moments is a vector quantity. It has both magnitude and direction. Hence, dipole moment of a molecule depends upon the relative orientation of the bond dipoles, but not on the polarity of bonds alone. A symmetrical structure shows zero dipole moment. Thus, dipole moment helps to predict the geometry of a molecules. Dipole moment values can be distinguish between cis- and trans- isomers, ortho, meta and pare-forms of a substance, etc. Q. Which is a polar molecule?

Polar covalent molecules exhibit dipole moment. Dipole moment is equal to the product of charge separation , q and the bond length d for the bond. Unit of dipole moment is debye. One debye is equal to 10^(-18) esu cm. Dipole moments is a vector quantity. It has both magnitude and direction. Hence, dipole moment of a molecule depends upon the relative orientation of the bond dipoles, but not on the polarity of bonds alone. A symmetrical structure shows zero dipole moment. Thus, dipole moment helps to predict the geometry of a molecules. Dipole moment values can be distinguish between cis- and trans- isomers, ortho, meta and pare-forms of a substance, etc. Q. Which is a polar molecule?

Assertion : All diatomic molecules with polar bond have dipole moment. Reason : Dipole moment is a vector quantity.

Assertion : All diatomic molecules with polar bond have dipole moment. Reason : Dipole moment is a vector quantity.