1 A C 4 H 11 N compound has a strong IR absorption at 3500 3200 cm 1 The 1 H NMR spectrum has a singlet at 1 4 and 1 1 ppm relative areas 2 9 The 13 C NMR spectrum shows 2 signals at 47 and 33 ppm Which of the following structures is consistent with the data presented 2 A C 7 H 12 compound has a characteristic IR absorption at 2175 cm 1 The 1 H NMR spectrum has 2 singlets at 2 1 and 1 24 ppm, a triplet at 0 89 ppm, and a quartet at 1 38 ppm relative areas 1 6 3 2 The 13 C NMR spectrum shows 6 signals at 90, 69, 34, 29, 28, 8 ppm Which of the following structures is consistent with the data presented K L H3

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Question: 1. A C 4 H 11 N compound has a strong IR absorption at 3500-3200 cm -1 . The 1 H NMR spectrum has a

1. A C₄H₁₁N compound has a strong IR absorption at 3500-3200 cm^-1. The ¹H NMR spectrum has a singlet at 1.4 and 1.1 ppm; relative areas: 2:9. The ¹³C NMR spectrum shows 2 signals at 47 and 33 ppm. Which of the following structures is consistent with the data presented?

2. A C₇H₁₂ compound has a characteristic IR absorption at 2175 cm^-1. The ¹H NMR spectrum has 2 singlets at 2.1 and 1.24 ppm, a triplet at 0.89 ppm, and a quartet at 1.38 ppm; relative areas: 1:6:3:2. The ¹³C NMR spectrum shows 6 signals at 90, 69, 34, 29, 28, 8 ppm. Which of the following structures is consistent with the data presented?

1. A C4H11N compound has a strong IR absorption at 3500-3200 cm-1.

K L H3

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