Question

(a) What do you mean by chlor-alkali process ? Write the chemical reaction involved in it. (b) How is tooth decay related to pH? How can it be prevented?

Answer 1

1. It is a type of decomposition reaction. When electricity is passed through an aqueous solution of sodium chloride (called brine), it decomposes to form sodium hydroxide. The process is called the chlor-alkali process because of the products formed- chlor for chlorine and alkali for sodium hydroxide.
2. tooth decay start when the pH of the mouth is lower than 5.5 bacteria present in the mouth produce acid by degradation of sugar and food particles remaining in the mouth after eating. this can be prevented by cleaning the mouth and teeth using toothpastes which are generally basic and can neutralize the excess acid.

Answer 2

Answer:

Explanation:

• It is a type of decomposition reaction. When electricity is passed through an aqueous solution of sodium chloride (called brine), it decomposes to form sodium hydroxide. The process is called the chlor-alkali process because of the products formed- chlor for chlorine and alkali for sodium hydroxide.
• tooth decay start when the pH of the mouth is lower than 5.5 bacteria present in the mouth produce acid by degradation of sugar and food particles remaining in the mouth after eating. this can be prevented by cleaning the mouth and teeth using toothpastes which are generally basic and can neutralize the excess acid.