Why do HCl, `HNO_(3)`, etc., show acidic characters in aqueous solutions while solution of compounds like alcohol and glucose do not show acidic character ?

Explanation

When HCl or `HNO_3` are mixed with water than they dissolve in water to form `H^(+) or H_3O ` Ions which shows their acidic character For example , just see the following solutions : `HCl(aq) to H^(+) +Cl H^(+) H_2O to H_3O `
When alcohols and glucose are mixed with water then they do not dissolve to form ions. Hence they do not show acidic character.