DNA ( Deoxyribonucleic acid) is a genetic material present in a nucleus of a cell. Although it contains a word acid, in its name, but its overall nature is not acidic instead it is neutral. Its name is acid due to its one of the component. DNA consists of nitrogenous bases and acidic sugar phosphate groups which provide negative charge to DNA.
Itself DNA does not have pH as it is not aqueous macromolecule. Its solution has a pH depending upon the amount of DNA and other components of a solution.