Name the gas produced when aluminium foil reacts with :
(a) dilute hydrochloric acid.
(b) sodium hydroxide solution.
(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.
The metal X reacts with dilute hydrochloric acid to form a gas Y.The metal X also reacts with sodium hydroxide solution (on heating) to form the same gas Y.When a lighted matchstick is applied,this gas burns by producing a 'pop' sound.
(a) Name two metals which could behave like X.
(b) Name the gas Y.