CH-1046
Acids and alkalis
Chemistry · Secondary 4 · Hard · Acids and alkalis
A sample of treated water may contain excess dissolved sulfuric acid. A student tests four samples.
Which result shows that excess acid is present?
A: pH 3, white precipitate with excess aqueous sodium hydroxide
B: pH 3, no reaction with excess aqueous sodium hydroxide
C: pH 11, no reaction with excess aqueous sodium hydroxide
D: pH 11, white precipitate with excess aqueous sodium hydroxide
Which result shows that excess acid is present?
A: pH 3, white precipitate with excess aqueous sodium hydroxide
B: pH 3, no reaction with excess aqueous sodium hydroxide
C: pH 11, no reaction with excess aqueous sodium hydroxide
D: pH 11, white precipitate with excess aqueous sodium hydroxide
- A
- B
- C
- D
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