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