Question

how will you test for the gas which is libarated when hydrochloric acid reacs with an active metel

Answer 1

you can test it by taking a burning splinter near it . it burn very fast for a second
.. hope it helps

Answer 2

Hey friend,
Here is your answer:

When an active metal reacts with hydrochloric acid, the gas liberated is hydrogen. To test for the gas, bring a burning splinter near the mouth of the gas jar containing hydrogen. The splinter will be extinguished. The gas will burn with a pop sound, indicating that hydrogen is the gas present in the jar.

Hope it helps u.