Explanation:
A covalent bond is defined as the bond formed due to sharing of electrons. And, when there is difference in electronegativity of the combining atoms then there will be occurrence of partial charges.
Generally, non-metals form covalent bonds.
As the chemical formula of aspirin is [tex]C_{9}H_{8}O_{4}[/tex]. So, there are only non-metal atoms present which means electrons are shared among the combining atoms. But due to the difference in their electronegativity there is development of partial charges.
Thus, we can conclude that polar covalent bond is present in aspirin.
