Question

Give reason
Use tooth paste to brush the teeth

Answer 1

Answer:

as it reacts with the food or substances

Answer 2

Answer:

To neutralise the acidic nature of our mouth .

Because after eating , some small particles of food are stuck in our teeth on which bacteria act and change the ph value of our mouth .

So we use tooth paste because it is basic in nature and it also neutralise the excess acid in our mouth .

Hope, it helps you .