Halogen Compounds Narayana Document pages. This effect is a permanent effect and is called hyperconjugation also called no-bond resonance. Chemical reactions generally involve the breakage of existing chemical bonds and the formation of new ones. This phenomena is called hyperconjugation. The polarity that arises in organic compounds due to the interactions between two pi bonds or a pi bond and a lone pair is a consequence of the mesomeric effect.
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