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SampleReaction with dilute hydrochloric acidIronZincCopperSulphurAluminiumCarbonTake the samples given in the table in different test tubes and add 5 ml of dilute HCl (hydrochloric acid) to it. If you see a reaction in any test tube, bring a burning matchstick near the mouth of the test tube and see if you hear a pop sound. Which of the following can be concluded based on this experiment?A) Some non – metals react with HCl releasing chlorine gas. B) Some metals react with HCl releasing hydrogen gas. C) Some non-metals react with HCl releasing hydrogen gas. D) Some metals and non-metals undergo rusting on reacting with HCl. |
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Answer» B) Some metals react with HCl releasing hydrogen gas. |
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