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The normal modes of vibrations of N2O is:
  • a)
    1
  • b)
    3
  • c)
    4
  • d)
    7
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The normal modes of vibrations of N2O is:a)1b)3c)4d)7Correct answer is...
N2O is a linear triatomic molecule and has four normal modes of vibration (and only two of rotation). Associated with each normal mode is a vibrational frequency and a normal coordinate.
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The normal modes of vibrations of N2O is:a)1b)3c)4d)7Correct answer is...
Normal Modes of Vibration in N2O

Normal modes of vibrations refer to the different ways in which a molecule can vibrate when subjected to energy. In the case of N2O, there are four normal modes of vibrations:

1. Symmetric Stretching (ν1)
This mode involves the stretching of the N-N bond in a symmetric fashion. This vibration results in a change in dipole moment and is IR active.

2. Asymmetric Stretching (ν2)
This mode involves the stretching of the N-N bond in an asymmetric fashion. This vibration also results in a change in dipole moment and is IR active.

3. Scissoring (ν3)
This mode involves the bending of the N-N-O bond angle. This vibration does not result in a change in dipole moment and is not IR active.

4. Rocking (ν4)
This mode involves the bending of the N-N bond angle. This vibration does not result in a change in dipole moment and is not IR active.

Therefore, there are a total of four normal modes of vibrations in N2O.
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Community Answer
The normal modes of vibrations of N2O is:a)1b)3c)4d)7Correct answer is...
N2O is linear so, linear formula is 3N-5
(3×no of molecules -5)
=3×3-5
=9-5
= 4
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The normal modes of vibrations of N2O is:a)1b)3c)4d)7Correct answer is option 'C'. Can you explain this answer?
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