Primary alcohol
alcohol with one OH group hanging on a C in turn connected to 1 other C atom and 2 H atoms
A primary alcohol is where no carbon atoms or just one carbon atom is connected to the hydroxyl-containing carbon atom.[1] This allows a compound with a primary alcohol to have a slightly different chemical formula from a compound with a secondary alcohol or tertiary alcohol.[1]

References
change- 1 2 Tarendash, Albert S. (2020-04-28). Let's Review Regents: Chemistry--Physical Setting 2020. Simon and Schuster. ISBN 978-1-5062-7075-3.