The proton NMR of 1,1-dibromoethane would appear as a

Name: The proton NMR of 1,1-dibromoethane would appear as a
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1,1-Dibromoethane has a CH2Br-CH2Br structure. The two methylene (CH2) groups are equivalent and split each other's signals due to spin-spin coupling, resulting in each appearing as a quartet (n+1 rule, where n=3 hydrogens on the adjacent carbon). There are no upfield doublets because there are no CH groups (which would be split into doublets by an adjacent CH2 group).

The Proton NMR of 1,1-Dibromoethane Would Appear as a