Question

which gas is usually librated when an acid reacts with a metal? illustrate with an example how will u test for the ​

Answer 1

Answer:

ANSWER

Hydrogen gas is liberated when an acid reacts with a metal.

For example, when zinc metal reacts with dil. hydrogen is evolved and salt zinc chloride is formed as: It can be tested by bringing a burning candle near the gas.

please follow me.

Answer 2

$\large{\underline{\underline{\red{\tt{\purple{\leadsto } AnsweR:-}}}}}$

➳ When an acid reacts with a metal the gas generally released is hydrogen. $\sf H_2$.

metals react with dilute acid to form salt and release hydrogen gas.

$\boxed{\purple{\bf{\dag Metal+Dilute\:Acid\longrightarrow Salt+H_2}}}$

➳ We can check whether hydrogen gas is released or not by bringing a burning matchstick near the test tube . When we do so we will notice a Pop sound which implies that the gas released is hydrogen.

➳ Also , Silver , Copper , Mercury , etc . do not react with dilute acids.

$\underline{\pink{\mathscr{\mapsto Here</p><p>E\:ArE\:SomE\: ReactionS:-}}}$

$\tt\leadsto Fe+2HCl\longrightarrow FeCl_2 + H_2$

$\tt \leadsto Mg+2HCl\longrightarrow MgCl_2 + H_2$

$\tt\leadsto Zn+2HCl\longrightarrow ZnCl_2 + H_2$

$\tt \leadsto 2Al+6HCl\longrightarrow 2FeCl_3 + 3H_2$