6. Draw a structure for a compound that meets the following description: C7H8 with IR absorptions at 1600 and 1500 cm1 and at 3030 cm1.

Use the 1H NMR and IR spectra given below to identify the structure ofcompound B (molecular formula C4H8O2).

Propose a possible structure for the compound represented by IR and mass spectra.

A student performed a series of reactions and obtained the spectral data provided. The reaction sequence is shown below.. What are the structures for A, B, C, and D? Compound B NMR (relative integrated areas below peaks) CH;CH,O°N 1. BHTHF N-bromosuccnimide A CH;CH,OH B 2. H,O,/OH- D hv reflux Compound A NMR (relative integrated areas below peaks) PPM 5 Compound B IR INFRARED SPECTRUM PPM 5 1 6 0.8 Compound A IR INFRARED SPECTRUM 0.6 0.8 0.4 0.4 0.2- 3000 2000 Wavenumber (cm-1) 1000 The MS of compound B shows an M+ peak at 198 and an M+2 peak at 200 with a relative abundance of 1:0.97 2000 Wavenumber (cm-1) 3000 1000 Transmitance Relative Transmittance

What best describes the IR spectrum of NaCl? A broad peak at 3400 cm-1 A strong peak at 1700 cm-1 No peaks are observed  A weak peak just above 3000 cm-1

Which statement accurately describes the IR spectrum of the compound shown? CI absorptions at 1720 cm¹ and 2150 cm ¹ O absorptions at 1800 cm ¹ and 2150 cm ¹ O absorptions at 1720 cm ¹ and 2250 cm-¹ O absorptions at 1800 cm¹ and 2250 cm-¹ O absorptions at 1650 cm ¹ and 2150 cm-¹

What is the structure of this molecule using the m/z, IR and HNMR spectra m/z = 158.09