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