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JEE Main Chemistry question

ChemistryChemical Bonding and Molecular StructureJEE Main

The correct order of dipole moment is:

Answer: (A)

Solution

is perfectly symmetric (tetrahedral, no lone pair) and has zero dipole moment. has a very small dipole moment () because the bond-dipoles (N toward more electronegative F) partly oppose the lone-pair dipole.

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Question ID VK-133592