Beside each spectrum, list the important IR absorbances and the type of bond causing each signal. Draw the structure that produced each spectrum inside the spectrum.

Counterfeit drugs are a common problem in developing regions of the world. Oftentimes, counterfeit pills are made with compounds such as lactose. A lab technician has obtained the IR spectrum shown above for a sample reported to be citalopram, an antidepressant drug. Does the IR spectrum belong to citalopram or lactose? Explain your answer by describing what feature of the IR spectrum confirms your choice and describe what feature is missing from the IR spectrum for the other compound. A. citalopram B. lactose

See image below

How many signals would be present in the 'HNMR? 4 1

How does H-nmr shift work ? like how do i know which line goes where ?

Identify the following spectra. Assign all pertinent peaks (~5-6 peaks). Place the structure of the compound in the box on the lower left-hand corner of spectrum. Please give explanation and draw on diagram as well, thank you