Lesson: Chapter 7 — Acids, bases and salts

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Question 1

Which pair both have a pH above 7?

A Hydrochloric acid and water B Vinegar and lime juice C Soap water and sodium hydroxide solution D Sodium chloride solution and water

The right answer is the one marked above.

Soap water and sodium hydroxide solution. Both are basic. Water and sodium chloride solution are neutral, at pH 7.

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