Question

Which one is correctly matched? *
a) Acids – pH range above 7
b) Acids – pH range below 7
c) Acids – pH range equal to 7
d) Acids – pH range between 8-9

Answer 1

Answer :-

b) pH range below 7.

Answer 2

The correct match is-

Acids – pH range below 7.

• The pH scale is used to determine the acidity or basicity of any species.
• The pH 7 indicates the neutral species.
• The pH range below 7 indicates the presence of an acid. As the pH value decreases acidity increases.
• The pH range above 7 indicates the presence of a base.
• Hence the correct option is b.