Question

CH₂ 1 Br — — он 2 CI 4CH- 3 R

Can someone explain to me why OH is ranked second and Ch3Ch2 is ranked 3rd?

Answer 1

Data: Answer! The absolute con ligura b'on os chisal is represented by R_and 's' notabio. To determine absolute configurab"com Le R and 's' of chival Corbins, crp nomenclature system is used. It is based on two rules - D Sequence rule 2) Contormation Rule. The sequence rule is used to arranged the atoms or groups directly attached to chiral Carbon by the Order ols Priority. The atom attached directly to the chical Carbon with higher atomic number getting bigber Priority. This is fitst Sequence yule. On the basis of thi's, Thus atomic number of Br is higher than o' The relore Br atom ranked first and o ranked seccord. The atomic number ols 6 is higher than e- atom. Thus 6 ranked Second Priority: Its two atoms attached directly to the chical Carbuor are same then atomic number of the next atom attached to these atom are considered on the basi's els this CH-cth group ranked third priority. In ethyle-alom attached to chiral carbons nexet alom is Gnother carbon but in the group, next atom ist Thus ethyl group ranked_Third and chlo ranked – Fourth Priority. __Ran's @ @ @ @ Priority order Bryo > Cth-cthy Chy- altomic number 35 8. Neset atom!Neset alom He'.