why do HCl,HNO3,etc..show acidic character in aqueous solution while solutions of compounds like alcohol and glucose do not show acidc character?ie,why glucose and alcohol dont conduct electricity?
Acidic character depends on many factors one of them is disassociation of the molecule in ions of H3O+ ions when dissolved in water.
When hydrochloric acid or nitric acid is put in water they produce these ions and thus they are acidic in nature. On the other hand compounds like alcohol and glucose does not dissociate in such a manner. So, these are not acidic in nature in their aqueous solutions.