Oklahoma Cosmetology Board Practice Exam

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What range of pH values is considered alkaline?

0-7
7
7-14
None of the above

The correct answer is: 7-14

An alkaline pH level refers to any level above a pH of 7. Option A (0-7) represents a range of acidic pH levels, while Option B (7) represents a neutral pH level. Option D states that none of the above options are correct, which is not the case as Option C (7-14) accurately represents the range of alkaline pH values.