1
Question
Strength of an acid solution or a basic solution can be determined by knowing the hydrogen ion concentrations in them, using a pH scale.
(i) Neutral solution has pH 7.
(ii) Acidic solution has pH less than 7.
(iii) Basic solution has pH more than 7.
The pH of a solution is inversely proportional to hydrogen(H+) ion concentration in it.
Teacher told three students Renuka, Bhawna and Seema to test their saliva with pH paper before and after having their lunch. Identify the correct observation from the following.
Strength of an acid solution or a basic solution can be determined by knowing the hydrogen ion concentrations in them, using a pH scale.
(i) Neutral solution has pH 7.
(ii) Acidic solution has pH less than 7.
(iii) Basic solution has pH more than 7.
The pH of a solution is inversely proportional to hydrogen(H+) ion concentration in it.
Teacher told three students Renuka, Bhawna and Seema to test their saliva with pH paper before and after having their lunch. Identify the correct observation from the following.
Open in App
Solution
The correct option is D Observations made by both Renuka and Seema were correct
As we know,
before having lunch saliva have basic nature while after lunch it becomes slight acidic because of HCl formation.
so both Renuka and Seema were correct
As we know,
before having lunch saliva have basic nature while after lunch it becomes slight acidic because of HCl formation.
so both Renuka and Seema were correct
Suggest Corrections
1
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
