Which of the following metals are extracted by the electrolysis of their molten chlorides?

83 The metal which can be extracted simply by heating the cinnabar ore in air is: 84 During galvanization, iron metal is given a thin coating of one of the following metals. This metal is: 86 Rock salt is an ore of one of the following metals. This metal is : 87 The articles made of silver metal become dark on prolonged exposure to air. This is due to the formation of a layer of its :