|
What is the pH value of pure water? |
|||
|
(a) |
1 |
(b) |
6 |
|
(c) |
7 |
(d) |
10 |
|
What is the pH value of pure water? |
|||
|
(a) |
1 |
(b) |
6 |
|
(c) |
7 |
(d) |
10 |