alleryStart learning →The gas usually evolved when a dilute acid reacts with a metal is
Ahydrogen
Boxygen
Cchlorine
Dnitrogen
Answer & Solution
Correct answer: A. hydrogen
1. A dilute acid reacts with many metals: acid + metal gives salt + hydrogen.
2. The gas burns with a pop sound when a lit splint is brought near.
3. That pop test confirms the gas is hydrogen.
_Source: AP/TS SCERT Class 10 Physical Science, "Acids, Bases and Salts"_
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