pH Value and pH Scale

Author:Brij Bihari Agrawal
10th CBSE
IMPORTANT

pH Value and pH Scale: Overview

This topic discusses pH values of the acidic and basic medium in detail. The value of pH ranges between 0 and 14. It also defines pH as the negative logarithm of the hydrogen ion concentration expressed in mole per litre.

Important Questions on pH Value and pH Scale

EASY
IMPORTANT
SCIENCE CHEMISTRY Part-II>Acids, Bases and Salts>pH Value and pH Scale> Q 1

The pH of a carbonated drink is:

MEDIUM
IMPORTANT
SCIENCE CHEMISTRY Part-II>Acids, Bases and Salts>pH Value and pH Scale> Q 2

Which of the following gives the correct increasing order of acid strength?

MEDIUM
IMPORTANT
SCIENCE CHEMISTRY Part-II>Acids, Bases and Salts>pH Value and pH Scale> Q 3

When a pH paper is dipped in a solution, the colour of the pH paper changes to deep red. What will be the possible pH of the solution?

MEDIUM
IMPORTANT
SCIENCE CHEMISTRY Part-II>Acids, Bases and Salts>pH Value and pH Scale> Q 4

You are given two solutions A and B. The pH of solution A is 6 and pH of solution B is 8.
(i) Which solution is acidic and which is basic?
(ii) Which solution has more H+ ions concentration?
(iii) Why HCl is a stronger acid than acetic acid?