NURSING EXAM QUESTIONS
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A substance with a pH of 4 is considered a(n)
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base
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neutral
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acid
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None of the above
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Explanation:
Detailed explanation-1: -A pH less than 7 is acidic. A pH greater than 7 is basic.
Detailed explanation-2: -For a neutral solution, [H+] is 10−7, or pH = 7. For larger hydrogen ion concentrations, then, the pH of the solution is < 7. For example, if the hydrogen ion concentration is 10−4, the pH = 4 and the solution is acidic.
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