name the gas which is liberated when an acid reacts with a metal illustrate with an example how will you test the presence of this gas

name the gas which is liberated when an acid reacts with a metal illus

1.	name the gas which is liberated when an acid reacts with a metal illustrate with an example how will you test the presence of this gas
Answer» Hydrogen gas for EXAMPLE H2SO4+Na= Na2SO4+H the presence can be tasted by USING MATCHING which produces pop-up SOUND when burned in the presence of hydrogen gas