Question

Three solutions X, Y and Z have pH values of 1, 6 and 12. Arrange them in increasing order of their strength. Give reason to support your answer.

Answer 1

Given pH values:

X = 1

Y = 6

Z = 12

Increasing order of strength:

Y < X < Z

Reason:

A lower pH indicates a stronger acid, while a higher pH indicates a stronger base. Thus, Y (pH 6) is the weakest, X (pH 1) is a stronger acid, and Z (pH 12) is a strong base.