Which substance would turn Litmus Red? This one is A Sr(OH)_(2) This one is B H_(2)O This one is C H_(2)SO_(4) This one is D SrSO_(4) D R a

The correct answer is C, .Litmus is a pH indicator that changes color depending on the acidity or basicity of a solution. When litmus is added to an acidic solution, it turns red. When litmus is added to a basic solution, it turns blue.Among the given options, (sulfuric acid) is an acidic substance, so it would turn litmus red. The other options, (strontium hydroxide), (water), and (strontium sulfate), are either neutral or basic substances, so they would not turn litmus red.