/6 Science Quiz (for 12 to 16 years old): Quiz 9 1 / 6LPG consists of mainly methane, ethane and hexane methane, hexane and nonane methane, butane and propane ethane, hexane and nonane 2 / 6Balloons are filled with argon helium nitrogen oxygen 3 / 6Which metal pollute the air of a big city? Copper Cadmium Chromium Lead 4 / 6Air is a/an mixture electrolyte element compound 5 / 6Which of the following does not contain a coinage metal? Copper and Gold Silver and Gold Zinc and Gold Copper and Silver 6 / 6Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products? Television Refrigerator Tube light Cooking gas Your score is 0% Restart quiz Next quiz Please rate the quiz Send feedback By WordPress Quiz plugin