1
At 25°C, pure water is approximately:
- A.pH 0
- B.pH 5
- C.pH 7
- D.pH 14
Answer: pH 7
Pure water has equal hydrogen and hydroxide ion concentrations and is neutral.
Chemistry, Neutral solutions · standard
Chemistry ECAT Prep — practice questions with answers
1 free ECAT Prep Chemistry questions, each with the correct answer and a worked explanation. No sign-up and no payment — every answer on this page is visible to anyone who opens it.
They come from the question bank our teachers write for their own students, and each one has been checked by the teacher who wrote it. Attempt the question before you reveal the answer: getting it wrong and then reading why is what actually moves a grade, and a question you answer instantly is a topic you can stop revising.
Topics covered on this page
- Chemistry, Neutral solutions
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Chemistry ECAT Prep practice — questions parents and students ask
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