Question

EASY QUESTION

Q. HOW IS THE EVOLUTION OF HYDROGEN FROM AN CHEMICAL REACTION FOUND ?

I WILL MARK YOU AS THE BRAINLIEST

Answer 1

evolution of hydrogen is formed when we use hydrogen gas in reactant side and the product which is formed consist of evolution of hydrogen gas
therefore hydrogen gas evolution occur because it is less reactive
fot eg. zinc + hydrochloric acid --------------->zinc chloride
+evolution of hydrogen

Answer 2

Pop test is a common test which is used to check whether the gas evolved from the particular reaction is hydrogen. When any paper is burnt near the hydrogen gas, it produces pop sound which is quite audible. Moreover, it gives pungent and irritating smell when evolved.