22. ph is a measure of
a. hydrogen ion concentration. c. hydroxide ion concentration.
b. hydrogen gas concentration. d. hydrolysis.

Option (a) is the correct answer.

Explanation:

pH is the measure of concentration of hydrogen ions present in a solution.

Mathematically,        pH = -

where         = concentration of hydrogen ions

More is the concentration of hydrogen ions present in a solution, less will be the value of pH. Hence, more will be the acidic nature of the solution.

Thus, we can conclude that pH is a measure of hydrogen ion concentration.

sry but any answer choices

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current