Question

How will you test for a gas which is liberated when HCL reacts with an active metal?

Answer 1

WHEN U KEPT A BURNING CANDLE NEAR THE GAS EMITING PART U WILL HEAR POP UP SOUND...WHICH REPRESENTS H2 EMISSION

Answer 2

$\huge \tt \red{ANSWER}$

✴️ When HCl reacts with a metal, hydrogen gas will be evolved.

✴️ To test this gas, insert a burning splinter into the outlet of gas, the flame will be extinguished with a pop sound.

✴️ This will confirm the gas is hydrogen.