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Answer : 3 Zn Explanation : Answer: C) Zn Explanation: In chemistry, a metal is an element that readily forms positive ions (cations) and has metallic bonds. Metals are opaque, lustrous elements that are good conductors of heat and electricity. Most metals are malleable and ductile and are, in general, denser than the other elemental substances. Examples of metals are aluminium, copper, iron, tin, gold, lead, silver, titanium, uranium, and zinc. Here Se - Selenium is an element but is not a metal, S - Sulphur is not a metal and I - Iodine is also not a metal. Hence, Zn - Zinc is the only metal in the given options.

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