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Which of the following structure to 1H NMR data pairings is NOT true.


Choice 1 of 4:1-bromopent-3-ene: 2H,t; 2H,quintet; 2H, quintet; 2H, quintet; 2H, sextet; 3H,t

Choice 2 of 4:bupropion: 1H,d; 1H,t; 1H,d; 1H,s; 1H,q; 3H,d; 1H,br s; 9H,s

Choice 3 of 4:methylcyclobutane: 3H, d; 4H, q; 2H, quintet

Choice 4 of 4:2-pentanone: 3H,s; 2H,t; 2H, sextet;, 3H, t