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    				| 1. | Acids react with metals to produce H2 gas. Suggest an activity to prove the above statement. Howdo you test for the H2 gas. Write any two precautions. | 
| Answer» ONG>ANSWER: When an ACID react with a metal it liberates hydrogen gas. To test the presence of H2 gas, bring a burning splinter near the mouth of the test tube where H2 gas is released, the MATCH STICK bums with a pop sound. | |