In a reaction between a metal and an acid, why are bubbles formed?
Formation of H2 gas
Formation of O2 gas
Formation of metal salt
None of the above
Metals on reaction with acids liberate Hydrogen gas. This is the reason why bubbles are formed in the solution.
True or false?
(a) Oxides of metals are basic.
(b) Common salt is acidic.
(c) Salts corrode metals.
(d) Bases are formed by the neutralization reaction between acids and salts.
(e) Salts are neutral.