Which of the following substances with the corresponding pH value is an alkali? Substance pH

Assessment: WAEC SSCE - Chemistry - 2014 (Objective) Subject: Chemistry

Question 1 Report

Which of the following substances with the corresponding pH value is an alkali?
Substance pH
Answer Details
Milk of magnesia with a pH value of 10.5 is an alkali. Alkalis are substances that have pH values greater than 7.0. The higher the pH value, the more alkaline the substance is. In this case, the substance with the highest pH value among the given options is Milk of magnesia, with a pH of 10.5. Therefore, it is the alkali among the given substances.
Read lesson note on Acids, Bases And Salts (Ghana Only) (WAEC)
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