MCQ
Which of the following pair of molecules will have permanent dipole moment?
- A$NO_2$ and $CO_2$
- ✓$NO_2$ and $O_3$
- C$SiF_4$ and $CO_2$
- D$SiF_4$ and $NO_2$
✓
Answer
Correct option: B.
$NO_2$ and $O_3$
b
$SiF _4, CO _2$ are perfectly symmetrical molecules.
$SiF _4, CO _2$ are perfectly symmetrical molecules.
Here, the dipole in all the directions cancel out and the resultant dipole is zero.
Resonance takes place in both $NO _2$ and $O _3$.
The partial charges in both the molecules cause individual dipoles to exist which in turn creates a permanent dipole moment.
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