how could you tell if an unknown is alcohol by examining its IR spectrum

Which one is the incorrect statement regarding mass spectrum? The structure likely contains a bromine atom if the (M+2)+ peak and (M)** are almost similar in heights The relative heights of (M)** peak and (M+1)** peak indicate the number of carbon atoms A signal at M-15 indicates the loss of a methyl group and a signal at M-29 indicates the loss of an ethyl group In case of alcohols, a signal at m/z = 18 is produced due to the loss of neutral H₂O molecule (Dehydration) The structure likely contains a chlorine atom if the (M+2)** peak is approximately one-third as tall as (M)*•

QUESTION 1 consistent with Which of the following spectroscopic measurements cyclohexanecarbaldehyde? is not O A. H-NMR: a doublet (J = 1.3 Hz) at 9.6 ppm O B. MS: a parent peak at m/z 98. O C. C-NMR: a peak at 204.7 ppm that has 1 H attached OD. IR: peaks at 2856 cm1 (6% transmittance); 2809 cm1 (37%); 2705 cm1 (35%), and 1727 cm-1 (5%).

May you please help me with this ochem question?

Draw the structure of the compound to its matching spectrum. Mark the peaks on the spectra that helped you pick that compound.

4000 For the following compound identify what peaks would be found in an IR spectrum. Draw the expected IR spectrum on the graph below. Label each peak with the location and portion of the molecule it represents. 3500 3000 IR spectrum 2500 2000 1500 1000 500 0

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What does it mean in IR spectra when a functional group has strong, medium, or weak intensity? Is it that it has a sharper peak for strong intsenity, or that the peak dips lower on the graph?

Which functional group, except alkane, is presence in the following IR spectrum? INFRARED SPECTRUM Relative Transmittance 0.96 0.92 carboxylic acid ether alcohol alkene 3000 2000 Wavenumber (cm-1) m 1000