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Propose possible structure(s) for a compound with molecular formula C4H7N that shows absorption at 2250 cm-1 in its IR spectrum.
Eligibility Requirements
Specific criteria or conditions that must be met in order to qualify for a position, status, or benefit.
Needy Americans
Individuals or groups within the United States who are in significant need of basic necessities, including food, shelter, and healthcare, often due to poverty or economic hardship.
Recession
A period of temporary economic decline during which trade and industrial activity are reduced, generally identified by a fall in GDP in two successive quarters.
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