DocMaboul Posted December 21, 2019 Share Posted December 21, 2019 Bonjour, quelqu’un peut m’expliquer l’item 9E compté juste svp ? Quote Link to comment Share on other sites More sharing options...
Solution DrR Posted December 21, 2019 Solution Share Posted December 21, 2019 salut, le N possède un doublet non liant donc y a une isomérie Z/E de part et d'autre de la double liaison CN, le doublet est considéré comme un "groupement" Quote Link to comment Share on other sites More sharing options...
DocMaboul Posted December 21, 2019 Author Share Posted December 21, 2019 ahh d’accord d’accord, merci ! Quote Link to comment Share on other sites More sharing options...
DrR Posted December 21, 2019 Share Posted December 21, 2019 il y a 48 minutes, DocMaboul a dit : ahh d’accord d’accord, merci ! avec plaisir Quote Link to comment Share on other sites More sharing options...
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