Massachusetts Wastewater Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Massachusetts Wastewater Exam with our comprehensive quiz. Utilize flashcards and multiple-choice questions, each loaded with hints and explanations. Ensure success for your test day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which of the following conditions indicates a basic solution?

pH below 7
pH equal to 7
pH above 7
pH of 14

The correct answer is: pH above 7

A solution is classified as basic (or alkaline) when its pH is above 7. The pH scale ranges from 0 to 14, with lower values indicating acidity, a neutral pH being exactly 7, and values higher than 7 indicating increasing basicity. A pH above 7 signifies that there is a predominance of hydroxide ions (OH-) in the solution compared to hydrogen ions (H+), which is characteristic of basic solutions. For instance, common basic substances include sodium hydroxide and ammonia, which typically demonstrate pH levels well above 7. Furthermore, a pH of 14 is the maximum on the scale and reflects a very strong basic solution, but it is a specific case within the broader category of basic solutions.