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Numérotation


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Guest Chimiste
Posted

Bjr à tous, j'ai un doute lorsqu'on a CH2CH3 et CH3, on considère plutôt CH2CH3 comme 1 et CH3 comme 2? Merci par avance

  • Ancien Responsable Matière
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Posted

Hello,

Oui c'est bien ça. Le C de ton CH2CH3 est lié à un 2ème C et le C de ton CH3 est lié à 3 H et aucun C. Or Z(C) > Z(H) donc CH2CH3 sera bien le 1 et CH3 le 2

Bon courage !

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