Answer: The correct answer is Option b.
Explanation: pH is the measure of acidity of basicity of the solution. It is basically known as power of hydrogen ion concentration. pH is the negative logarithmic of hydrogen ion concentration.
Mathematically,
![pH=-\log[H^+]](https://tex.z-dn.net/?f=pH%3D-%5Clog%5BH%5E%2B%5D)
More the hydrogen ion concentration, low is the pH and more acidic is the solution and vice-versa.
pH scale is from 0 to 14.
Acidic solutions vary from pH 0 to 6.9
Basic solutions vary from pH 7.1 to 14.
Neutral solution has a pH of 7.
For the reaction of weak acid (near to 7) and strong base (far from 7), the final pH will be far from 7 or more than 7. Hence, the pH of final solution will be more than 7 and will be basic in nature.