Question

Vigorous bubble formation in a liquid due to release of a gas is called:

A) Effervescence

B) Precipitation

C) Synthesis

D) Rusting​

Answer 1

Explanation:

In the laboratory, a common example of effervescence is seen if hydrochloric acid is added to a block of limestone. If a few pieces of marble or an antacid tablet are put in hydrochloric acid in a test tube fitted with a bung, effervescence of carbon dioxide can be witnessed.

{\displaystyle {\ce {CaCO3 + 2 HCl -> CaCl2 + H2O + CO2 (^)}