25. Which of the following statements is true? a. A solution having a pH = 2.00

Question

25. Which of the following statements is true? a. A solution having a pH = 2.00 is five times more acidic than a solution having a pH = 10.00. b. A solution having a pH 1.00 has two times [H'] as a solution having a pH 2.00. c. The pOH of a 1.00x 10-9 M LiOH solution is 9.00 d. A solution having pH-6.00 is one-thousand times less basic than a solution having a pH = 9.00. More than one of the above statements are true. e. 26. Which of the following statements is true about diprotic acids (i.e., H2A) and their ionization in water? a. Usually, [A2] Kai b. Ka2 > Kal c. Most ionization occurs in the second step. e. More than one of the above statements is true.

Explanation / Answer

Ans 25 ; e) more than one of the above statements are true

The pH is negative logarithm of hydrogen ion concentration in the solution and likewise pOH is the negative logarithm of hydroxide ion concentration in solution.

So both c and d options are correct here.

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