Name the gas evolved by reaction of metal with acid .how will you test the presence of this gas?
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hydrogen gas
hydrogen gas burns with a pale blue flame (if it is pure hydrogen ) and with a pale blue flame and pop sound (if it is mixed with air or oxygen )
hydrogen gas burns with a pale blue flame (if it is pure hydrogen ) and with a pale blue flame and pop sound (if it is mixed with air or oxygen )
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Answer:
Explanation:
Hydrogen gas is liberated when an acids reacts with metal.
For Example, when zinc metal react with dilute HCL, Hydrogen is evolved and salt chloride is formed as :-
Zn + 2HCL ==> ZNCl₂ + H₂
It can be tested by bringing a burning candle near the gas. The candle continues burning with a pop sound.
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