Question

Name the hydrocarbon having three carbon atoms and an -OH group attached to the terminal carbon atom.

• A. Propan-1-ol
• B. Propan-1-al
• C. Propan-1-one
• D. Propan-1-oic acid

Answer 1

The correct option is A Propan-1-ol

$\bullet$ The chemical formula of the hydrocarbon is: ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{OH.}$
$\bullet$ Since there are three carbon atoms in the parent chain, the root word is 'prop'.
$\bullet$ The -OH group present in the compound at terminal position refers to the alcohol group at first position and hence the suffix is '-1-ol'.
$\bullet$ So, the IUPAC name of the compound is propan-1-ol.