Question

pH value ranges from _ _ _ _ _ _ to _ _ _ _ _ _ .
a.) 0 to 14
b.) 1 to 14
c.) 2 to 14
d.) 1 to 15

Answer 1

The pH is potential hydrogen. It is the negative logarithm of concentration of hydrogen ions. It is a scale used to indicate the acidity and basicity of a solution. The acids have pH range from 0 to 7. The point 7 is the neutral. The basic solutions have pH above 7. It is maximum up to 14.

Complete answer:
The pH is defined as the negative logarithm of concentration of hydrogen ions. The pH stands for potential hydrogen. It is a scale used to indicate the acidity and basicity of a solution. The units of pH are moles per litre.
The acids have pH range from 0 to 7. The point 7 is the neutral. The basic solutions have pH above 7. It is maximum up to 14.
The most acidic solutions have smaller range i.e. near 2 but the most basic solutions have pH range of high value i.e. near 12.
So, the pH ranges from 0 to 14.

Thus, the option a.) is the correct answer.

Note:
It must be noted that pH of pure water is neutral. The pH of blood is slightly basic. There are pH dependent plant pigments that can be used as pH indicators. The pH meter can be used to measure pH of the solution.