reand Bonding 1.6 Inductive effects.hype rconjugation and mesomeric effects 1.6.1 Inductive effects Whn the r -l group CHO,COR 4C-部-品-品-a elleibleem ond lone pair contributions.and this can (measured in debyes(D).the more polar the compound. 1.6.2 Hyperconjugation oing lecrohn Thepochar