Question

A student measured the pH of various solutions using pH paper and

recorded the following observations.

Solution Colour in the pH paper

P Green

Q Blue

R Yellow

S Red

(a) Which one of the solutions is neutral?

(b)Which one of the solution is basic?

(c) Arrange the above solutions in the increasing order of their pH.

(ii) Explain the importance of pH in the following.

(a) Digestive system

(b)Tooth decay​

Answer 1

Answer:

a ,b i can hope this helps