_______ is a colourless gas which is produced by the reaction of active metal with dilute hydrochloric acid.
Oxygen
Water gas
Nitrogen
Hydrogen
Hydrogen gas produced by active metals on reaction with dilute hydrochloric acid.
A metal reacts with dilute Hydrochloric acid to produce a gas. What is used to identify this gas?
(a) Name one metal which reacts with dilute hydrochloric acid to produce hydrogen gas.
(b)Name one metal which does not react with dilute hydrochloric acid.