Which of the following statements is correct about an aqueous solution of an acid and of a base?

(i) Higher the pH, stronger the acid (ii) Higher the pH, weaker the acid

(iii) Lower the pH, stronger the base (iv) Lower the pH, weaker the base

(A) (i) and (iii) 

(B) (ii) and (iii)

(C) (i) and (iv) 

(D) (ii) and (iv)

 

Answer

pH scale-Techoo.jpg

Low pH corresponds to acidic solutions whereas high pH corresponds to basic solutions .

Therefore, the lower the pH, the stronger is the acid and the weaker the base

 

So, the correct option is (d) - (ii) and (iv)

  1. Class 10
  2. Chapter 2 Class 10 - Acids, Bases and Salts (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo