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Question
The decreasing order of net dipole moments of the following:
The decreasing order of net dipole moments of the following:
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Solution
The correct option is C I>II>III
(I) has a smaller angle of separation between two Br atoms than in (II) and (III), resulting in more net dipole moment (µ)
(II) has a large angle of separation between two Br atoms; therefore, net (µ) is less than (I)
In (III), two Br atoms and two H atoms have equal and opposite bond moments; therefore, net µ is zero.
I>II>III
(I) has a smaller angle of separation between two Br atoms than in (II) and (III), resulting in more net dipole moment (µ)
(II) has a large angle of separation between two Br atoms; therefore, net (µ) is less than (I)
In (III), two Br atoms and two H atoms have equal and opposite bond moments; therefore, net µ is zero.
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