Question

which gas is evolved when acid added to the lime water

Answer 1

$\huge \mathfrak {Hey Friend!}$

$\bold {ANSWER :}$ No gas will be evolved when an acid is added to lime water. When an acid and a base reacts, it forms salt and water. Let us take HCl for the reaction. Lime water is a base. So, the product will be salt and water.

Chemical equation for the reaction is:

Calcium hydroxide (lime water) + Hydrochloric acid ---------> Calcium chloride + water

Ca(OH)2 (aq) + 2HCl (aq) -----------> CaCl2 (s) + 2H2O (l)

Hope this helps u..........

Answer 2

Carbon dioxide gas is evolved