Dilute hydrochloric acid (HCl) reacts with metal to evolve _____ gas along with the formation of corresponding metal salt.
The correct option is B hydrogen
Acids react with metals to produce the respective metal salt along with hydrogen gas. The general form of the reaction is given below:
Acid+Metal→Metal salt+Hydrogen gas
For example: When hydrochloric acid reacts with zinc, a salt of zinc chloride is produced along with the evolution of hydrogen gas. This can be represented as:
Zinc+Hydrochloric acid→Zinc chloride+Hydrogen gas