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Debanjana adhikari Asked a Question
May 8, 2020 11:24 pmpts 30 pts
Q42. Which one of the following active? (a) 'H-H gases of diatomic molecules is Raman, infrared, and NMR (b) c-o (c)'H-CI (d) oo Ans. (C)
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  • Ruby negi thankyou
    hcl is correct option..
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  • Dhairya sharma
    In order for a vibrational mode to absorb infrared light, it must result in a periodic change in the dipole moment of the molecule. Such vibrations are said to be infrared active. ...
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    Debanjana adhikari
    In answering a question how can i find out that if a molecule changes polarisibity or dipole moment or both?? Like here answer wise HCl should change polarisibility as well as dipo...
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  • Dhairya sharma
    A symmetrical vibration, without change in the dipole moment would be Raman active, and not in IR. Like the stretching of a molecule of hydrogen. Water being non linear has no vibr...
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  • Dhairya sharma thankyou
    Only those molecular vibrations producing a dipole–moment change are IR active, allowed in the IR, and only those molecular vibrations producing polarization of the electron cloud ...
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