Question detail
When hydrochloric acid reacts with sodium hydroxide, what is the name of the salt produced?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Reactions of acids
Question
- A. Sodium chloride
- B. Sodium sulfate
- C. Sodium nitrate
- D. Sodium carbonate
Answer
Sodium chloride
Explanation
The reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) produces sodium chloride (NaCl) and water, which is a typical acid-base reaction.
Common mistake
Misinterpreting pH change as a direct ion count
Students often think that because neutralisation removes H⁺ ions, the pH simply jumps to a fixed value, ignoring the logarithmic scale and concentration of OH⁻ added.
Explain that pH is calculated from the negative log of the H⁺ concentration; when an alkali supplies OH⁻, the H⁺ concentration falls exponentially, so the pH rises by a number of units that depends on the amount of OH⁻ added and the initial H⁺ concentration, not by a fixed amount.
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