Which of these can be found as a native metal?A:PotassiumB:AluminiumC:GoldD:Iron
Question
Which of these can be found as a native metal?
- A: Potassium
- B: Aluminium
- C: Gold
- D: Iron
Solution
C: Gold
Explanation:
A native metal is any metal that is found in its metallic form, either pure or alloyed, in nature.
A: Potassium - Potassium is a highly reactive metal that is not found free in nature.
B: Aluminium - Although it is the most abundant metal in the earth's crust, it is never found free in nature.
C: Gold - Gold is one of the few elements to appear in a natural state. It is found in veins and alluvial deposits.
D: Iron - Iron is not found in nature as a free metal. It is commonly found in the Earth's crust in the form of an ore, usually an iron oxide, such as magnetite or hematite.
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