Chemistry - CHEMICAL BONDING Question with Solution | TestHub

ChemistryCHEMICAL BONDINGDipole MomentEasy2 minPYQ_2020

ChemistryEasysingle choice

Which one of the following arrangement of molecules is correct on the basis of their dipole moments?

Options:

Answer:

Solution:

Both $N F_{3}$ and $N H_{3}$ have identical shape (pyramidal) and a lone pair of electron on nitrogen. Dipole moment of $N H_{3}$ is higher than $N F_{3}$ molecule as the orbital moment due to lone pair of electrons and the resultant dipole moment of 3 N-F bonds point in the opposite directions to that of lone pair of electrons.
$B F_{3}$ is a symmetrical molecule. It has zero dipole moment.

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:CHEMICAL BONDINGSubtopic:Dipole Moment

⏱ 2mℹ️ Source: PYQ_2020

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