MCQ
If $AB _{4}$ molecule is a polar molecule, a possible geometry of $AB _{4}$ is :
- ✓Square pyramidal
- BTetrahedral
- CSquare planar
- DRectangular planar
✓
Answer
Correct option: A.
Square pyramidal
a
$(1)$ If $AB _{4}$ molecule is a square pyramidal then it has one lone pair and their structure should be and it should be polar because dipole moment of lone pair of $'A'$ never be cancelled by others.
$(1)$ If $AB _{4}$ molecule is a square pyramidal then it has one lone pair and their structure should be and it should be polar because dipole moment of lone pair of $'A'$ never be cancelled by others.
$(2)$ If $AB _{4}$ molecule is a tetrahedral then it has no lone pair and their structure should be and it should be non polar due to perfect symmetry.
$(3)$ If $AB _{4}$, molecule is a square planar then it should be non polar because vector sum of dipole moment is zero.
$(4)$ If $AB _{4}$ molecule is a rectangular planar then it should be non polar because vector sum of dipole moment is zero.
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