Question

why do HCL,H₂SO₄,HNO₃,etc.,acidic character in aqueous solutions while solutions of compounds like C₆H₁₂O₆ and C₂H₅OH do not show acidic character

Answer 1

HCl, HSO4 and HNO3 shows acidic characters in an aqueous solutions because they release H+ ions in the aqueous solutions.
While Glucose and alcohol do not release H+ ions in aqueous solutions and hence did not show acidic characters.