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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Chemistry (CY)
2 . chemical bonding please answer my question as soon as possible to
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Priyanshu kumar Best Answer
g and u labels are only used when the molecule itself possesses the inversion symmetry element(centrosymmetric molecule).Symmetry labels are defined by whether the orbital maintains its original character after rotating about its center: if so, it is defined gerade, g; if the orbital does not maintain its original character, it is ungerade, u. So option B is correct..CH4 has tetrahedral geometry not centrosymmetric or inversion symmetry elements. So parity g and u are not used
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Suman Kumar![best-answer]()
option B is correct. Tetrahedral geometry does not have center of symmetry so we don't use g & u