Four solutions labelled as P , Q , R and S have pH values 1 , 9,3 and 13 respectively . Which of the following statements about the given solutions is incorrect ?

Options

A. Solution P has higher concentration of hydrogen ions than solution R .
B. Solution Q has lower concentration of hydroxyl ions than solution S .
C. Solutions P and Q will turn red litmus solution blue .
D. Solution P is highly acidic while solution Q is weakly basic .

Answer

C

Explanation

Lower the pH of the solution , more acidic is the solution and higher is the `[H^(+)]` ions . Thus , solution P(pH=1) has higher `[H^(+)]` ions than solution R (pH=3) . (b) Higher the pH of the solution , more basic is the solution and higher is the `[OH^(-)]` ions . Thus , solution Q(pH=9) has lower `[OH^(-)]` ions than solution `S(pH=13)`.
(c ) Solution P(pH=1) is acidic which turns blue litmus solution red .Whereas solution Q (pH=9) is basic which turns red litmus solution blue .
(d) Solution p(pH=1) is highly acidic while solution S(pH=13) is highly basic and solution Q(pH=9) is weakly basic .