Rhode Island Cosmetology and Barbering Practice Exam

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Prepare for the Rhode Island Cosmetology and Barbering Exam. Our quiz offers multiple choice questions and detailed explanations, ideal for mastering the knowledge necessary for certification in the cosmetology and barbering fields.

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!

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What range of pH values is considered acidic?

0-7
7
7-14
None of the above

The correct answer is: 0-7

pH is a scale used to measure the acidity or alkalinity of a solution, ranging from 0 to 14. A pH value of 7 is considered neutral, meaning the solution is neither acidic nor basic. Therefore, option B, which states a pH range of 7, is incorrect. Option C, which states a range of 7-14, includes basic solutions and does not only consist of acidic solutions. Therefore, it is also incorrect. Option D states that none of the above options are correct, but since option A is the correct answer, this statement is also incorrect.