which gas is us all liberated when an acid reacts with metal?illustrate with an example. how will you test for the presence of this gas ?
Answers
Explanation:
Hydrogen gas is liberated.
You can test the presence by bringing a burning match bear it. I'd it burns with a pop sound it indicates presence of hydrogen.
Example-:
nitric acid + calcium → calcium nitrate + hydrogen
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Answer:
The gas which is liberated out is hydrogen. First in a holder place a testing containing H2SO4 and put some granules of zinc into it . Now seal the test tube with a cork attached with a delivery tube. Place the other end of the delivery tube in a beaker full og soap solution. Now we will observe that bubbles are coming out of the soap solution . When a candle in brought near the bubbles , it will burst with a pop sound. And only hydrogen gas burns with a pop sound. Hence proved.
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Explanation: