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Based on the given table;
A is a basic solution; addition of HClO₄ makes pH lower.
B is a neutral solution; addition of KI make pH stay same.
C is an basic solution; addition of NaClO₄ makes pH stay same.
D is a neutral solution; addition of KOH makes pH higher.
<h3>What changes occur in the pH of the solutions?</h3>The pH of a solution is a measure of the acidity or alkalinity of the solution.
Solutions of pH less than 7 are acidic solutions whereas solutions of pH greater than 7 are basic solutions. Solutions of pH 7 are neutral solutions.
Addition of acids to an acid solution, will decrease the pH, while addition of a base will increase the pH.
Conversely, addition of a base to an basic solution will increase its pH whereas, addition of an acid will decrease the pH of the solution.
Based on the given table;
A is initially a solution; addition of HClO₄, an acid will make pH lower.
B is a neutral solution, addition of a neutral salt such as KI will make pH stay same.
C is an basic solution. When NaClO₄ is added, pH will be same.
D is neutral. Add KOH, and pH will be higher.
In conclusion, pH of a solution is affected by addition of acids, salts or bases.
Learn more about pH at: brainly.com/question/940314
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