Phenol
= Phenol
{title2=$\mathrm C_6\mathrm H_5\mathrm{OH}$}
<Phenol> is <benzene> with one ring <hydrogen> replaced by a <hydroxy group>. That O–H group supplies the <hydrogen bond donor> in the experiment under <hydrogen bond acceptor>. https://openstax.org/books/organic-chemistry/pages/17-1-naming-alcohols-and-phenols[McMurry: phenol naming and structures]{ref}