Correct option is C
The pH of an alkaline solution is greater than 7. A pH of 10 represents an alkaline (basic) solution, indicating the presence of hydroxide ions(OH_)in higher concentrations compared to hydrogen ions(H+)
Key points:
● The pH scale ranges from 0 to 14, with 7 being neutral.
● A pH greater than 7 indicates alkalinity, while less than 7 indicates acidity.
● Common alkaline substances include baking soda, ammonia, and soap solutions.
● The higher the pH, the stronger the alkalinity.
● Alkaline solutions are used in cleaning agents due to their ability to neutralize acids.
● The pH scale is logarithmic, meaning each unit change represents a tenfold difference.
Additional Information:
- pH 5 and pH 3 are acidic values.
- pH 2 is highly acidic, while pH 10 is clearly alkaline.