Question Text
Question 3 :
Use of a mild base like _____on the stung area gives relief.
Question 4 :
Tooth decay starts when the pH of the mouth is less than:
Question 5 :
A farmer treats the soil of his field with lime when the soil has:
Question 7 :
Tooth decay can be cured by a toothpaste by a reaction called as :
Question 8 :
Barium hydroxide is an alkali. It reacts with hydrochloric acid. How does the pH of the hydrochloric acid change as an excess of aqueous barium hydroxide is added?
