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11 Nov 2019
11) How many 'H NMR signals would you expect from this compound? A) 1 B) 2 C) 3 D) 4 E) 5 12) An organic compound absorbs strongly in the IR at 1687 cm. Its 'H NMR spectrum consists of two signals, a singlet at 2.1 ppm and a multiplet centered at 7.1 ppm. Its mass spectrum shows significant peaks at m/z 120, m/z 105 and m/z 77. This information is consistent with which of the following structures? IV B) II D) IV E) v A) I c) ⠢ 13) How many UC signals would 1,3-dichlorobenzene give? Cl A) 1 B) 2 C) 3 D) 4 E) 5 14). A compound with the molecular formula C,H,Clh gave a 'H NMR spectrum consisting only of a triplet centered at δ 3.7 and a quintet centered at δ 2.2. The most likely structure for the C) CICH CHCICH
11) How many 'H NMR signals would you expect from this compound? A) 1 B) 2 C) 3 D) 4 E) 5 12) An organic compound absorbs strongly in the IR at 1687 cm. Its 'H NMR spectrum consists of two signals, a singlet at 2.1 ppm and a multiplet centered at 7.1 ppm. Its mass spectrum shows significant peaks at m/z 120, m/z 105 and m/z 77. This information is consistent with which of the following structures? IV B) II D) IV E) v A) I c) ⠢ 13) How many UC signals would 1,3-dichlorobenzene give? Cl A) 1 B) 2 C) 3 D) 4 E) 5 14). A compound with the molecular formula C,H,Clh gave a 'H NMR spectrum consisting only of a triplet centered at δ 3.7 and a quintet centered at δ 2.2. The most likely structure for the C) CICH CHCICH
Nestor RutherfordLv2
10 Jun 2019