Question

The pH of three aqueous solutions A, B and C are 3,9 and 6 respectively. The order of increasing acidity of these solutions is-​

Answer 1

Given:

pH of three solutions is 3 , 9 , 6.

To find:

Order of increasing acidity ?

Calculation:

• We know that pH = -log_(10)[H]

• That means lower the pH, higher will be the [H+] concentration of the solution and higher will be the acidity.

• pH < 7 means acidic , pH = 7 means neutral and pH > 7 means alkaline.

A : pH = 3

B : pH = 9

C : pH = 6

• So, the required order is :

$\boxed{B < C < A}$