The pH values of some substances are given in the table. Analyze the table and answer the questions
| Substance |
pH value |
| Vinegar |
4.2 |
| Lime water |
10.5 |
| Milk |
6.4 |
| Water |
7 |
| Toothpaste |
8,7 |
| Blood |
7.36 |
a. Is blood acidic or basic in nature?
b. The pH value of pure milk is 6.4. Does the pH value increase or decrease when milk changes to curd. Justify your answer
c. Among the substances given in the above table
(i) Which one is strongly basic?
(ii) Which one has weak acidic nature
