MCQ
The most polar compound among the following is
- A
- B
- ✓
- D
✓
Answer
Correct option: C.
c
Among the substituents attached to the given compounds, fluorine has maximum electronegativity. So it will push electron pair towards it self. In option $(b),$ the two $F$ groups are attached opposite to each other thus net dipole moment will cancel each other and reduce its polarity. In option $(d),$ the $F$ groups are attached in slightly opposite direction thus this also decreases its polarity. But in option $(c),$ the compound has the two $F$ groups along same direction. Thus net dipole moment will increase in this direction thus it will have maximum polarity. Thus the compound in option $(c)$ has maximum polarity
Among the substituents attached to the given compounds, fluorine has maximum electronegativity. So it will push electron pair towards it self. In option $(b),$ the two $F$ groups are attached opposite to each other thus net dipole moment will cancel each other and reduce its polarity. In option $(d),$ the $F$ groups are attached in slightly opposite direction thus this also decreases its polarity. But in option $(c),$ the compound has the two $F$ groups along same direction. Thus net dipole moment will increase in this direction thus it will have maximum polarity. Thus the compound in option $(c)$ has maximum polarity
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