NEETChemistryChemical Bonding and Molecular StructureMCQ+4 / −1
Which of the following molecules has the maximum dipole moment ?
- ACO2
- BCH4
- CNH3
- DNF3
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Correct answer: C
Even though for CO2 and CH4 the C - O and C - H bonds are polar but due to their symmetrical structure they have zero dipole moment.
In NH3, H is less electronegative than N and hence the dipole moment of each N-H bond is towards N which is in the similar direction of lone pair but for NF3 the dipole moment of N-F bond is in opposite direction of lone pair which reduce the value of net dipole moment.
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