An element 'A' is reacted with dilute hydrochloric acid in a test tube. Bubbles of a colourless gas evolve. This gas burns with a pop sound when a burning matchstick is brought near the mouth of test tube. Based on this observation, which of the following statements is correct?
1
Element 'A' is non-metal; gas evolved is chlorine
2
Element 'A' is a metal; gas evolved is chlorine
3
Element 'A' is a metal: gas evolved is oxygen
4
Element 'A' is a metal: gas evolved is hydrogen