Which one of the following compounds has non zero dipole moment ?
A
B
C
D
Text Solution
AI Generated Solution
The correct Answer is:
To determine which compound has a non-zero dipole moment, we need to analyze the molecular geometry and the arrangement of polar bonds in each option. Here’s a step-by-step solution:
### Step 1: Understand Dipole Moment
The dipole moment is a vector quantity that depends on the polarity of the bonds and the geometry of the molecule. A molecule will have a non-zero dipole moment if the dipoles of the individual bonds do not cancel each other out.
### Step 2: Analyze Each Compound
1. **Compound A (Cis isomer)**:
- In a cis isomer, the polar bonds (like C-Cl) are oriented in the same direction.
- Since both dipoles point in the same direction, they do not cancel out.
- Therefore, this compound has a non-zero dipole moment.
2. **Compound B (Benzene with 3 CN groups)**:
- The three CN groups are symmetrically arranged around the benzene ring.
- The dipoles from these groups will cancel each other out due to symmetry.
- Thus, this compound has a zero dipole moment.
3. **Compound C (CH2Cl groups)**:
- If the CH2Cl groups are arranged symmetrically (e.g., in a trans configuration), their dipoles will also cancel each other out.
- Therefore, this compound has a zero dipole moment.
4. **Compound D (NH groups on benzene)**:
- Similar to the CH2Cl case, if the NH groups are symmetrically placed, their dipoles will cancel each other out.
- Thus, this compound also has a zero dipole moment.
### Step 3: Conclusion
After analyzing all the compounds, we find that **Compound A (the cis isomer)** is the only one with a non-zero dipole moment.
### Final Answer
**The compound with a non-zero dipole moment is Compound A (the cis isomer).**
---
To determine which compound has a non-zero dipole moment, we need to analyze the molecular geometry and the arrangement of polar bonds in each option. Here’s a step-by-step solution:
### Step 1: Understand Dipole Moment
The dipole moment is a vector quantity that depends on the polarity of the bonds and the geometry of the molecule. A molecule will have a non-zero dipole moment if the dipoles of the individual bonds do not cancel each other out.
### Step 2: Analyze Each Compound
1. **Compound A (Cis isomer)**:
- In a cis isomer, the polar bonds (like C-Cl) are oriented in the same direction.
...
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