A. Ammonia Gas
B. Chlorine
C. Oxygen
D. Hydrogen gas
Submitted by: Rashid Mehmood
When metal reacts with acid, a soap bubble is formed and the bubble contains Hydrogen gas (example: HCl, H2SO4).
Hydrogen gas is liberated when anacid reacts with a metal. For example, when zin cmetal reacts with dil. hydrogen is evolved and salt zinc chloride is formed as: It can be tested bybringing a burning candle near thegas.
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