Public Release Item
Selected Response Item for Grade 8
Standard 4.0 Chemistry
Topic D. Physical and Chemical Changes
Indicator 2. Cite evidence and give examples of chemical properties of substances.
Objective b. Use information gathered from investigations using indicators and the pH scale to classify materials as acidic, basic, or neutral.
A student classifies a substance as an acid.
Which of the following substances is the most acidic?
- a substance that has a pH of 8
- B a substance that has a pH of 7
- C a substance that has a pH of 5
- a substance that has a pH of 2
|D. a substance that has a pH of 2|