Water does not produce CO on reacting with:
Barium reacts vigorously even with cold water while Mg reacts slowly with warm water. Mg does not react with cold water easily while Beryllium does not react even with boiling water.
(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.