Question

A student detected the pH of four unknown solution A, B ,C,D
as follows 11,5,7,2 and to predict the nature of solution

Answer 1

Answer:

solution A is basic (pH=11)

solution B is acidic (pH=5)

solution C is neutral (pH=7)

solution D is acidic (pH=2)

(Explanation: according to the pH chart-

• any substance with pH less than 7 is an acidic substance or solution

            (pH<7 is acidic)  

• any substance with pH more than 7 is a basic substance or solution

           (pH>7 is basic)  

• any substance with pH equal to 7 is a neutral solution  

            (pH=7 is neutral)