Same chapter3 marksDifficulty: Medium
Describe the fountain experiment with hydrogen chloride and state what it demonstrates.
Study of Compounds: Hydrogen Chloride
2 marksDifficulty: Medium
Why does hydrochloric acid not liberate hydrogen from copper?
Original Khojo Papers practice question — not from a past board paper.
Answer
Copper lies below hydrogen in the activity series, so it cannot displace hydrogen from an acid. Only metals above hydrogen, such as zinc, iron and magnesium, do so.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Copper does react with oxidising acids such as nitric acid, but no hydrogen is set free there either.
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