The pH of a cold drink is 5. What will be its action on blue and red litmus solutions? (b) The pH values of three acids A, B and C having equal molar concentrations are 5.0, 2.8 and 3.5 respectively. Arrange these acids in order of the increasing acid strengths.
ChemistryClass 10ICSEAnswered 27 Mar 2026
Answer
(a)A cold drink with a pH value 5 is acidic and therefore blue litmus turns red and red litmus remains as such.
(b) Acid values are considered if less than pH 7. Here the acids in the increasing order of their strengths are A<C<B