Question

Name the gas produced when aluminium reacts with (a) Dilute hydrochloric acid (b) Sodium hydroxide solution An element A is soft, brittle and does not conduct electricity. Another element is hard malleable, ductile and conducts electricity. Which of these elements is a non metal? When a copper object is exposed to moist air for a long time, a green coating is formed on its surface. Name this green colored material. State whether the material is acidic basic Sodium metal reacts vigorously with water. Name the gas evolved when sodium reacts with water. State whether the solution formed by the reaction of sodium with water is acidid basic​

Answer 1

Answer:

When aluminium foil reacts with sodium hydroxide, sodium aluminate is formed. Metals react with dilute acids to form metallic salts and hydrogen gas. For example, Aluminium foil reacts with dilute hydrochloric acid to produce aluminium chloride and hydrogen gas