A) \[F{{e}_{3}}{{O}_{4}}\]
B) \[ZnC{{O}_{3}}\]
C) \[CuC{{O}_{3}}-Cu{{(OH)}_{2}}\]
D) \[Fe{{S}_{2}}\]
Correct Answer: A
Solution :
Wrought iron contains carbon [C]. It is the purest form of commercial iron. It contains about 0.2-0.5% carbon besides traces of P and Si in the form of slag. The ore magnetite is\[F{{e}_{3}}{{O}_{4}}\].
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